Problem LCD/LED/Buzzer Explanation What to do Unit shuts downAutomatically duringstartup process. LCD/LEDs and buzzer willbe active for 3 secondsand then complete off. The battery voltage is too low .(<1.91V/Cell) 1.Re-charge battery.2.Replace battery No response afterpower on No indication. 1.The battery voltage is far too low. (<1.4V/Cell)2.Battery polarity is reversed 1. Check if batteries and the … Continue reading Inverter Fault Codes …Troubleshooting