SolarEdge Residential single/three-phase inverters (incl. HD-Wave, StorEdge) error codes explained

What 123 SolarEdge Residential single/three-phase inverters (incl. HD-Wave, StorEdge) inverter fault and error codes mean, in plain English, with safe checks you can do and when to call a licensed electrician.

Guide only. This information is a general guide taken from manufacturer documentation. All electrical work must be performed by a licensed electrician. Never open your inverter, battery or switchboard. If you see smoke, smell burning or see damage, keep clear and call 000.
CodeMessage & meaningModelType
2x2Warning
Night Mode is an inverter status indicating that the input voltage is below 6 V DC

Night Mode is an inverter status indicating that the input voltage is below 6 V DC.

What you can do

  • This is normal at dawn, dusk, in heavy cloud or when panels are shaded
  • No action needed if it clears once the sun is up
  • If it shows in full sun, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x9Critical
Ground current surge

Ground current surge.

What you can do

  • Keep clear - do not touch the inverter, frames or cabling
  • Leave the system off if it has shut down
  • If you see smoke, smell burning or hear crackling, keep everyone away and call 000
  • Call a licensed electrician or Total Solar to test the earthing

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2xACritical
Ground faults may occur due to insufficient insulation to the ground

Ground faults may occur due to insufficient insulation to the ground.

What you can do

  • Keep clear - do not touch the panels, rooftop isolators, DC cables or the inverter
  • Note the code and whether it appears in wet weather or early morning - this helps the electrician
  • If you see smoke, smell burning or hear crackling, keep everyone away and call 000
  • Call a licensed electrician or Total Solar - insulation and earth faults need testing with proper equipment

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2xDCritical
Ground current surge

Ground current surge.

What you can do

  • Keep clear - do not touch the inverter, frames or cabling
  • Leave the system off if it has shut down
  • If you see smoke, smell burning or hear crackling, keep everyone away and call 000
  • Call a licensed electrician or Total Solar to test the earthing

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2xEFault
AC voltage surge

AC voltage surge.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2xFFault
The SolarEdge system normally eliminates DC overvoltage errors

The SolarEdge system normally eliminates DC overvoltage errors.

What you can do

  • Do not touch the DC isolators or cables
  • Note the time - this often shows on cold, very sunny mornings
  • Call your installer - the panel strings may need to be checked against the inverter's limits

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x10Fault
Vref1V or Vref2V > +/-3%

Vref1V or Vref2V > +/-3%

What you can do

  • Note the code, time and whether it clears by itself
  • You may restart the system once using the owner shutdown/start-up steps in your manual. Do not open covers or touch cabling
  • If the code returns or the system stays offline, call your installer - internal faults are a warranty/technician job

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x11Fault
Over temperature

Over temperature.

What you can do

  • Check from a safe distance that the inverter is shaded, has clear space around it and that nothing is blocking the vents
  • It usually recovers once it cools down
  • If it repeats often or you can hear a noisy/failed fan, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x13Fault
SW error

SW error

What you can do

  • Note the code, time and whether it clears by itself
  • You may restart the system once using the owner shutdown/start-up steps in your manual. Do not open covers or touch cabling
  • If the code returns or the system stays offline, call your installer - internal faults are a warranty/technician job

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x18Fault
Broken or unconnected temperature sensor

Broken or unconnected temperature sensor.

What you can do

  • Check from a safe distance that the inverter is shaded, has clear space around it and that nothing is blocking the vents
  • It usually recovers once it cools down
  • If it repeats often or you can hear a noisy/failed fan, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x19Critical
PV solar array is not properly isolated from ground earth

PV solar array is not properly isolated from ground earth.

What you can do

  • Keep clear - do not touch the inverter, frames or cabling
  • Leave the system off if it has shut down
  • If you see smoke, smell burning or hear crackling, keep everyone away and call 000
  • Call a licensed electrician or Total Solar to test the earthing

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x1AFault
Contact SolarEdge support

Contact SolarEdge support.

What you can do

  • Check solar generation in the app compared with similar days
  • Do not touch the DC isolators, cables or connectors, and don't go on the roof
  • If it doesn't clear by itself, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x1CFault
Contact SolarEdge support

Contact SolarEdge support.

What you can do

  • Check solar generation in the app compared with similar days
  • Do not touch the DC isolators, cables or connectors, and don't go on the roof
  • If it doesn't clear by itself, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x1DFault
Line to Neutral voltage is above threshold

Line to Neutral voltage is above threshold.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x1EFault
Line to Neutral voltage is below threshold

Line to Neutral voltage is below threshold.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x1FFault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x20Fault
Grid voltage is below the country limit

Grid voltage is below the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x21Fault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x25Critical
Ground faults may occur due to insufficient insulation to the ground

Ground faults may occur due to insufficient insulation to the ground.

What you can do

  • Keep clear - do not touch the panels, rooftop isolators, DC cables or the inverter
  • Note the code and whether it appears in wet weather or early morning - this helps the electrician
  • If you see smoke, smell burning or hear crackling, keep everyone away and call 000
  • Call a licensed electrician or Total Solar - insulation and earth faults need testing with proper equipment

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x26Critical
Ground faults may occur due to insufficient insulation to the ground

Ground faults may occur due to insufficient insulation to the ground.

What you can do

  • Keep clear - do not touch the panels, rooftop isolators, DC cables or the inverter
  • Note the code and whether it appears in wet weather or early morning - this helps the electrician
  • If you see smoke, smell burning or hear crackling, keep everyone away and call 000
  • Call a licensed electrician or Total Solar - insulation and earth faults need testing with proper equipment

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x28Fault
Grid is down

Grid is down.

What you can do

  • Check whether the rest of your house or street has power, and check your network operator's outage map
  • Check the switchboard for a tripped solar/inverter breaker - reset it once only; if it trips again, leave it off and call an electrician
  • Once normal power is back the inverter usually reconnects on its own within a few minutes
  • If the power is normal but the alarm stays, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x29Fault
Grid voltage is below the country limit

Grid voltage is below the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x2CFault
No country selected

No country selected

What you can do

  • Don't change installer settings yourself
  • Call your installer - country/grid settings and configuration must be set by them or the manufacturer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x2DFault
Portia - DSP1 comm error (3x2)

Portia - DSP1 comm error (3x2)

What you can do

  • Check that your home Wi-Fi/internet is working and restart your router
  • Wait an hour - monitoring often reconnects by itself
  • If the inverter screen also shows a fault, or the alarm stays for more than a day, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x95Fault
Power train error

Power train error

What you can do

  • Note the code, time and whether it clears by itself
  • You may restart the system once using the owner shutdown/start-up steps in your manual. Do not open covers or touch cabling
  • If the code returns or the system stays offline, call your installer - internal faults are a warranty/technician job

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x96Critical
Arc-DSP1

Arc-DSP1

What you can do

  • Keep clear of the inverter, panels and DC cables, and do not touch any isolators
  • Note the code, date and time
  • If you smell burning or see smoke, get everyone out and call 000
  • Call a licensed electrician or Total Solar - an arc fault means a DC wiring or connector problem that must be inspected

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x97Critical
Arc-DSP2

Arc-DSP2

What you can do

  • Keep clear of the inverter, panels and DC cables, and do not touch any isolators
  • Note the code, date and time
  • If you smell burning or see smoke, get everyone out and call 000
  • Call a licensed electrician or Total Solar - an arc fault means a DC wiring or connector problem that must be inspected

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2x98Critical
Tx test (previously known as arc test error)

Tx test (previously known as arc test error)

What you can do

  • Keep clear of the inverter, panels and DC cables, and do not touch any isolators
  • Note the code, date and time
  • If you smell burning or see smoke, get everyone out and call 000
  • Call a licensed electrician or Total Solar - an arc fault means a DC wiring or connector problem that must be inspected

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
2xB5Fault
Relay feedback

Relay feedback

What you can do

  • Note the code, then restart the system once using the owner shutdown/start-up steps in your manual
  • If the code comes back, call your installer - this is an internal fault that needs a licensed electrician or the manufacturer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x3Warning
Night Mode is an inverter status indicating that the input voltage is below 6V DC

Night Mode is an inverter status indicating that the input voltage is below 6V DC.

What you can do

  • This is normal at dawn, dusk, in heavy cloud or when panels are shaded
  • No action needed if it clears once the sun is up
  • If it shows in full sun, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x19Fault
AC voltage surge

AC voltage surge

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x1AFault
AC voltage surge

AC voltage surge

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x1BFault
AC voltage surge

AC voltage surge

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x1CFault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x1DFault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x1EFault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x1FFault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x20Fault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x21Fault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x22Fault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x23Fault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x24Fault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x25Fault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x26Fault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x27Fault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x28Fault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x29Fault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x2AFault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x2BFault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x2CFault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x2DFault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x2EFault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x2FFault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x30Fault
Line voltage is low

Line voltage is low.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x31Fault
Line voltage is high

Line voltage is high.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x32Fault
Line voltage is high

Line voltage is high.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x33Fault
Line voltage is high

Line voltage is high.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x34Fault
Line voltage is low

Line voltage is low

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x35Fault
Line voltage is low

Line voltage is low

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x36Fault
Line voltage is low

Line voltage is low

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x37Fault
Line voltage is high

Line voltage is high

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x38Fault
Line voltage is low

Line voltage is low

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x39Fault
If the error flags on all three phases at the same time, there is most likely a DC related

If the error flags on all three phases at the same time, there is most likely a DC related issue on site.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x3BFault
If the error flags on all three phases at the same time, there is most likely a DC related

If the error flags on all three phases at the same time, there is most likely a DC related issue on site.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x3CFault
If the error flags on all three phases at the same time, there is most likely a DC related

If the error flags on all three phases at the same time, there is most likely a DC related issue on site.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x40Fault
The frequency measured on L1 is higher than the thresholds

The frequency measured on L1 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x41Fault
The frequency measured on L2 is higher than the thresholds

The frequency measured on L2 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x42Fault
The frequency measured on L3 is higher than the thresholds

The frequency measured on L3 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x43Fault
The frequency measured on L1 is lower than the thresholds

The frequency measured on L1 is lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x44Fault
The frequency measured on L2 is Lower than the thresholds

The frequency measured on L2 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x45Fault
The frequency measured on L3 is Lower than the thresholds

The frequency measured on L3 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x46Fault
The frequency measured on L1 is higher than the thresholds

The frequency measured on L1 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x47Fault
The frequency measured on L2 is higher than the thresholds

The frequency measured on L2 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x48Fault
The frequency measured on L3 is higher than the thresholds

The frequency measured on L3 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x49Fault
The frequency measured on L1 is lower than the thresholds

The frequency measured on L1 is lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x4AFault
The frequency measured on L2 is Lower than the thresholds

The frequency measured on L2 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x4BFault
The frequency measured on L3 is Lower than the thresholds

The frequency measured on L3 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x4CFault
The frequency measured on L1 is higher than the thresholds

The frequency measured on L1 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x4DFault
The frequency measured on L2 is higher than the thresholds

The frequency measured on L2 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x4EFault
The frequency measured on L3 is higher than the thresholds

The frequency measured on L3 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x4FFault
The frequency measured on L1 is lower than the thresholds

The frequency measured on L1 is lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x50Fault
The frequency measured on L2 is Lower than the thresholds

The frequency measured on L2 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x51Fault
The frequency measured on L3 is Lower than the thresholds

The frequency measured on L3 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x52Fault
The frequency measured on L1 is higher than the thresholds

The frequency measured on L1 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x53Fault
The frequency measured on L2 is higher than the thresholds

The frequency measured on L2 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x54Fault
The frequency measured on L3 is higher than the thresholds

The frequency measured on L3 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x55Fault
The frequency measured on L1 is lower than the thresholds

The frequency measured on L1 is lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x56Fault
The frequency measured on L2 is Lower than the thresholds

The frequency measured on L2 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x57Fault
The frequency measured on L3 is Lower than the thresholds

The frequency measured on L3 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x58Fault
The frequency measured on L1 is higher than the thresholds

The frequency measured on L1 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x59Fault
The frequency measured on L2 is higher than the thresholds

The frequency measured on L2 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x5AFault
The frequency measured on L3 is higher than the thresholds

The frequency measured on L3 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x5BFault
The frequency measured on L1 is lower than the thresholds

The frequency measured on L1 is lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x5CFault
The frequency measured on L2 is Lower than the thresholds

The frequency measured on L2 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x5DFault
The frequency measured on L3 is Lower than the thresholds

The frequency measured on L3 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x60Fault
Grid is down

Grid is down. When AC grid voltage returns the inverter will restart after the reconnection time

What you can do

  • Check whether the rest of your house or street has power, and check your network operator's outage map
  • Check the switchboard for a tripped solar/inverter breaker - reset it once only; if it trips again, leave it off and call an electrician
  • Once normal power is back the inverter usually reconnects on its own within a few minutes
  • If the power is normal but the alarm stays, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x62Fault
Grid is down

Grid is down. When AC grid voltage returns the inverter will restart after the reconnection time.

What you can do

  • Check whether the rest of your house or street has power, and check your network operator's outage map
  • Check the switchboard for a tripped solar/inverter breaker - reset it once only; if it trips again, leave it off and call an electrician
  • Once normal power is back the inverter usually reconnects on its own within a few minutes
  • If the power is normal but the alarm stays, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x6FFault
Grid voltage is above the country limit

Grid voltage is above the country limit

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x70Fault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18x71Fault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xB5Fault
DC/AC in-stage overvoltage

DC/AC in-stage overvoltage

What you can do

  • Do not touch the DC isolators or cables
  • Note the time - this often shows on cold, very sunny mornings
  • Call your installer - the panel strings may need to be checked against the inverter's limits

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xB6Fault
DC/AC out-stage overvoltage

DC/AC out-stage overvoltage

What you can do

  • Do not touch the DC isolators or cables
  • Note the time - this often shows on cold, very sunny mornings
  • Call your installer - the panel strings may need to be checked against the inverter's limits

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xB7Fault
DC/AC in-stage overvoltage

DC/AC in-stage overvoltage

What you can do

  • Do not touch the DC isolators or cables
  • Note the time - this often shows on cold, very sunny mornings
  • Call your installer - the panel strings may need to be checked against the inverter's limits

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xB8Fault
DC/AC out-stage overvoltage

DC/AC out-stage overvoltage

What you can do

  • Do not touch the DC isolators or cables
  • Note the time - this often shows on cold, very sunny mornings
  • Call your installer - the panel strings may need to be checked against the inverter's limits

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xB9Fault
DC/DC in-stage overvoltage

DC/DC in-stage overvoltage

What you can do

  • Do not touch the DC isolators or cables
  • Note the time - this often shows on cold, very sunny mornings
  • Call your installer - the panel strings may need to be checked against the inverter's limits

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xBAFault
DC/DC out-stage overvoltage

DC/DC out-stage overvoltage

What you can do

  • Do not touch the DC isolators or cables
  • Note the time - this often shows on cold, very sunny mornings
  • Call your installer - the panel strings may need to be checked against the inverter's limits

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xBBFault
Vin min

Vin min

What you can do

  • Note the code, date and time and check the monitoring app
  • Restart the system once using the owner shutdown/start-up steps in your manual if it allows
  • If it comes back, call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xBCFault
Power module voltage imbalance

Power module voltage imbalance

What you can do

  • Note the code, time and whether it clears by itself
  • You may restart the system once using the owner shutdown/start-up steps in your manual. Do not open covers or touch cabling
  • If the code returns or the system stays offline, call your installer - internal faults are a warranty/technician job

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xBDFault
Power module voltage imbalance

Power module voltage imbalance

What you can do

  • Note the code, time and whether it clears by itself
  • You may restart the system once using the owner shutdown/start-up steps in your manual. Do not open covers or touch cabling
  • If the code returns or the system stays offline, call your installer - internal faults are a warranty/technician job

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xD8Fault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xD9Fault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xDAFault
Grid voltage is above the country limit

Grid voltage is above the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xDBFault
Grid voltage is below the country limit

Grid voltage is below the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xDCFault
Grid voltage is below the country limit

Grid voltage is below the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xDDFault
Grid voltage is below the country limit

Grid voltage is below the country limit.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xDEFault
The frequency measured on L1 is lower than the thresholds

The frequency measured on L1 is lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xDFFault
The frequency measured on L2 is Lower than the thresholds

The frequency measured on L2 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xE0Fault
The frequency measured on L3 is Lower than the thresholds

The frequency measured on L3 is Lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xE1Fault
The frequency measured on L1 is lower than the thresholds

The frequency measured on L1 is lower than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xE2Fault
The frequency measured on L2 is higher than the thresholds

The frequency measured on L2 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xE3Fault
The frequency measured on L3 is higher than the thresholds

The frequency measured on L3 is higher than the thresholds

What you can do

  • This is caused by the mains frequency moving outside the allowed range, usually briefly
  • The inverter reconnects by itself once the grid is stable
  • If it keeps happening, note the times and call your installer

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xE4Fault
The line to neutral voltage on the AC side of the system is out of range, based on the tri

The line to neutral voltage on the AC side of the system is out of range, based on the trip points set by the country code.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter
18xE5Fault
The line to neutral voltage on the AC side of the system is out of range, based on the tri

The line to neutral voltage on the AC side of the system is out of range, based on the trip points set by the country code.

What you can do

  • This is usually caused by the mains supply, not the solar system
  • The inverter normally reconnects by itself once grid voltage is back in range
  • If it happens often (especially on sunny afternoons), note the times and call your installer - they can check the voltage and settings and talk to the network if needed

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) · Guide only. All work must be done by a licensed electrician.

Residential single/three-phase inverters (incl. HD-Wave, StorEdge) Inverter

Need help with this fault?

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Sources

Meanings are summarised from these manufacturer documents. Check your own model's manual, as codes vary between models and firmware versions.

SolarEdge is a trademark of its owner. Total Solar is not affiliated with the manufacturer unless stated. All fault code guides

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