Dyness error codes explained

What 6 Dyness battery 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
Charge: Over-currentFault
Charging over-current (red ALM light, buzzer)

Charging over-current (red ALM light, buzzer)

What you can do

  • Turn off any very large loads that were running when the alarm appeared
  • Wait - many over-current protections reset automatically
  • If it keeps happening, call your installer

DL5.0C low-voltage battery · Guide only. All work must be done by a licensed electrician.

DL5.0C low-voltage battery Battery
Charge: High tempWarning
Charging high temperature (red ALM light)

Charging high temperature (red ALM light)

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

DL5.0C low-voltage battery · Guide only. All work must be done by a licensed electrician.

DL5.0C low-voltage battery Battery
Discharge: Over-currentFault
Discharging over-current (red ALM light, buzzer)

Discharging over-current (red ALM light, buzzer)

What you can do

  • Turn off any very large loads that were running when the alarm appeared
  • Wait - many over-current protections reset automatically
  • If it keeps happening, call your installer

DL5.0C low-voltage battery · Guide only. All work must be done by a licensed electrician.

DL5.0C low-voltage battery Battery
Discharge: High tempWarning
Discharging high temperature (red ALM light)

Discharging high temperature (red ALM light)

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

DL5.0C low-voltage battery · Guide only. All work must be done by a licensed electrician.

DL5.0C low-voltage battery Battery
Discharge: Total voltage undervoltageFault
Total voltage undervoltage (red ALM light, buzzer)

Total voltage undervoltage (red ALM light, buzzer)

What you can do

  • Note the code and the battery state of charge shown in the app
  • Let the system run - some battery voltage protections clear by themselves after charging or discharging
  • If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

DL5.0C low-voltage battery · Guide only. All work must be done by a licensed electrician.

DL5.0C low-voltage battery Battery
Discharge: Cell voltage undervoltageFault
Cell voltage undervoltage (red ALM light, buzzer)

Cell voltage undervoltage (red ALM light, buzzer)

What you can do

  • Note the code and the battery state of charge shown in the app
  • Let the system run - some battery voltage protections clear by themselves after charging or discharging
  • If the alarm stays or keeps returning, call your installer - don't open or disconnect the battery yourself

DL5.0C low-voltage battery · Guide only. All work must be done by a licensed electrician.

DL5.0C low-voltage battery Battery

Common Dyness questions

What does Dyness Charge: Over-current "Charging over-current (red ALM light, buzzer)" mean?

Charging over-current (red ALM light, buzzer) Turn off any very large loads that were running when the alarm appeared This is a guide only; any electrical work must be done by a licensed electrician.

What does Dyness Discharge: Over-current "Discharging over-current (red ALM light, buzzer)" mean?

Discharging over-current (red ALM light, buzzer) Turn off any very large loads that were running when the alarm appeared This is a guide only; any electrical work must be done by a licensed electrician.

What does Dyness Discharge: Total voltage undervoltage "Total voltage undervoltage (red ALM light, buzzer)" mean?

Total voltage undervoltage (red ALM light, buzzer) Note the code and the battery state of charge shown in the app This is a guide only; any electrical work must be done by a licensed electrician.

What does Dyness Discharge: Cell voltage undervoltage "Cell voltage undervoltage (red ALM light, buzzer)" mean?

Cell voltage undervoltage (red ALM light, buzzer) Note the code and the battery state of charge shown in the app This is a guide only; any electrical work must be done by a licensed electrician.

What does Dyness Charge: High temp "Charging high temperature (red ALM light)" mean?

Charging high temperature (red ALM light) 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.

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.

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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.

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

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