Latronics error codes explained

What 5 Latronics inverter fault and error codes mean, in plain English, with safe checks you can do and when to call a licensed electrician.

Safety first: never open the switchboard, remove covers, or pull apart or disconnect the inverter, batteries, isolators or wiring. Only use the switches and buttons described here. Anything else must be done by a licensed electrician. Call 1300 209 503 or book a service request.

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.

Code	Message & meaning	Model	Type
100% LED flashingWarning	Overload / over-temperature The 100% (top) LED flashes with all other LEDs off: the inverter is overloaded or 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 PV Edge PVE1200 / PVE2500 grid-connect · Guide only. All work must be done by a licensed electrician.	PV Edge PVE1200 / PVE2500 grid-connect	Inverter
75% LED solidWarning	Solar present, grid disconnected The 75% LED is on solid with all other LEDs off: solar input is present but the AC grid is disconnected or the inverter is waiting to reconnect. 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 PV Edge PVE1200 / PVE2500 grid-connect · Guide only. All work must be done by a licensed electrician.	PV Edge PVE1200 / PVE2500 grid-connect	Inverter
75% LED flashingInfo	Grid stability check The 75% LED flashes for about 90 seconds while the inverter checks grid voltage and frequency before exporting. What you can do No action needed - this is a status message, not a fault If it stays for a long time or the system isn't producing when it should, call your installer PV Edge PVE1200 / PVE2500 grid-connect · Guide only. All work must be done by a licensed electrician.	PV Edge PVE1200 / PVE2500 grid-connect	Inverter
50% LED flashingFault	AC fault The 50% LED flashes with all other LEDs off: an AC (grid) fault is present. 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 PV Edge PVE1200 / PVE2500 grid-connect · Guide only. All work must be done by a licensed electrician.	PV Edge PVE1200 / PVE2500 grid-connect	Inverter
25% LED flashingInfo	Battery maintenance cycle The 25% (bottom) LED flashes slowly during a battery maintenance cycle (battery mode only). What you can do No action needed - this is a status message, not a fault If it stays for a long time or the system isn't producing when it should, call your installer PV Edge PVE1200 / PVE2500 grid-connect · Guide only. All work must be done by a licensed electrician.	PV Edge PVE1200 / PVE2500 grid-connect	Inverter

Common Latronics questions

What does Latronics 50% LED flashing "AC fault" mean?

The 50% LED flashes with all other LEDs off: an AC (grid) fault is present. This is usually caused by the mains supply, not the solar system This is a guide only; any electrical work must be done by a licensed electrician.

What does Latronics 100% LED flashing "Overload / over-temperature" mean?

The 100% (top) LED flashes with all other LEDs off: the inverter is overloaded or over temperature. Check from a safe distance that the inverter is shaded, has clear space around it and that nothing is blocking the vents This is a guide only; any electrical work must be done by a licensed electrician.

What does Latronics 75% LED solid "Solar present, grid disconnected" mean?

The 75% LED is on solid with all other LEDs off: solar input is present but the AC grid is disconnected or the inverter is waiting to reconnect. Check whether the rest of your house or street has power, and check your network operator's outage map This is a guide only; any electrical work must be done by a licensed electrician.

What does Latronics 75% LED flashing "Grid stability check" mean?

The 75% LED flashes for about 90 seconds while the inverter checks grid voltage and frequency before exporting. No action needed - this is a status message, not a fault This is a guide only; any electrical work must be done by a licensed electrician.

What does Latronics 25% LED flashing "Battery maintenance cycle" mean?

The 25% (bottom) LED flashes slowly during a battery maintenance cycle (battery mode only). No action needed - this is a status message, not a fault This is a guide only; any electrical work must be done by a licensed electrician.

Need help with this fault?

Get a licensed electrician to call you back.

Total Solar can help: our licensed electricians install and service systems. Based in Ellenbrook, WA, with Victoria and Queensland also available.

Or call 1300 209 503

Sources

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

Latronics PV Edge (PVE1200/PVE2500) Instruction Manual A340-D05-V24.1, "Inverter operation - indicator lamps" p.10-11 and "Fault finding" p.15

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

Common Latronics questions

Need help with this fault?

Sources

Services

Company

Contact