How to resolve Error / Faul 08 in off grid inverters

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How to resolve Error / Faul 08 in off grid inverters

The error 08 will appear on the LCD screen of the inverter if the generator will spike an over voltage at the AC input terminals.

If the generator is not properly size (a small generator for example 3Kw connected to 5kW off-grid inverter will cause a surge current or voltage that may damage permanently the main board).

How to solve the problem.

  1. Disconnect the AC input from the inverter and run the system with solar panels and battery only.
  2.  If the error is cleared then you have to check the parameters of the generator
  3. Connect the right SPD (surge protection device) at the AC input of the inverter.

You can find the 240VAC single phase protection here

If the error persists on, you have to contact our technical team to arrange a repair. Most likely the main inverter board is damaged.