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20 Trouble shooting
Warning
– Never remove the cover of the inverter! Do not self repair the inverter, no serviceable parts are
inside the unit.
No function
DC-Low voltage
DC-Over voltage
Over temperature
Overload
Other failures
V/Cell: The nominal voltage using lead acid batteries is 2VDC/Cell. Example: A 12V-Battery contains 6 single
cells, a 24V-Battery contains 12 single cells etc.
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ACDC-DCDC
Check LED-Display to identify the reason.
According the failure indicated by the display see sections below to solve the problem.
Check wiring for correct size, damage or loose screws.
Check batteries, battery fuse or fuse installed on AC-output.
The battery voltage dropped below 1.75V/Cell.
Check battery fuse.
Charge the battery – if charging is not solving the problem maybe the battery is defect.
The wiring may be too thin or check installation for loose connections.
Note: If battery voltage rises above 2.1V/Cell, the inverter restarts automatically.
The battery voltage is above 2.55V/Cell.
Remove the battery charger and stop charging the battery.
Note: If battery voltage is dropping below 2.5V/Cell the inverter restarts automatically.
If load is smaller than nominal power of inverter – check if ventilation of the inverter is
blocked. Maybe the ambient temperature is too high.
If load is exceeding nominal power of inverter – reduce the load.
Note: The inverter will switch on automatically if temperature of the inverter is within
normal operating temperature range.
Reduce load. Remove unnecessary consumers.
Reset the inverter with the front panel switch OFF than ON.
Check system for correct grounding or contact your dealer.
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