Fan is locked when inverter is off.
Battery voltage is too high
Battery voltage is too low
Output short circuited or over temperature is detected by
internal converter components.
Output voltage is too high.
Inverter soft start failed
Over DC voltage in AC output
Battery connection is open
Fan is locked when inverter is on.
Beep three times every
second
Beep once every 0.5 second
Beep twice every 3 seconds
Communication interrupted