UK
Carbest Pure Sine Wave Inverter with built-in priority switch| 82277/82278/82279
9�
TROUBLESHOOTING
9.1.
When public power is not available and inverter switch ON,
the problem happened in the inverter mode�
Trouble
No AC output
No AC output
Battery run time is less than expec-
ted
Possible Cause
Red LED lit,
Battery over discharged,
green LED not lit
low battery protection
or beep sound
Over temperature pro-
alarm
tection
Overload protection
Short circuit protection
Red and green
Fuse burnt
LED not lit
PCB broken
Battery's defective or poor
connection
Earth fault protection
Strong collision cause the
circuit loosen
AC loads power consump-
tion is higher than the
rated power
Battery is old or defective
Battery over discharge
Power dissipation caused
by the too long or thin
cable
25
Suggested Remedy
Change the battery or
charge it
Remove or reduce load,
wait for device to cool
Remove or reduce load
or use inverter with more
power
Reduce load or remove
short circuit
Change fuse or contact
technician for support
Contact service for repair
or change
Change battery or re-con-
nect the battery
Unplug the fault load
Contact seller for repair or
change
Use a larger battery or
connect more batteries
in parallel to increase the
backup time
Replace the battery
Charge the battery
Use more shorter/thicker
DC cables