Troubleshooting 5
EN11
No LCD display
Backup time is short
Alarm buzzer
beeps continuously
Inverter entered into
fault mode
Refer to the fault code to
identify the fault and report
to service representative for
further assistance
Mains are normal
but works in backup
mode
Battery voltage is low
Recharge the battery and
check if the battery cables are
well connected
Battery is defective Replace the batteries
Power button is not pressed
AC input is absent
Overloading Disconnect non critical loads
Battery voltage is too low
Recharge battery for at least
8 hours
Battery is bad Replace good quality batteries
Check the connection of
AC input
Press and hold the power
button
Problem Possible Cause Remedial Action
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