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9. TROUBLESHOOTING
9.1 When public power failure and lnverter switch ON, the problem happened in the inverter mode
9.2 When public power on, the problem happened in bypass and charger mode
9.3 Other problems
10. CLEANING, CARE AND MAINTENANCE
Always disconnect the power inverter from the 12V/24V power source and the external appliances from the
socket before starting any cleaning or maintenance. Keep all air inlets and vents free of dirt and dust. Clean the
power inverter with a moistened cloth. Do not use abrasive utensils for cleaning. Store the power inverter in a dry
place, well ventilated and in a temperature range between 0ºC and 40ºC. Do not store in direct sunlight, near
heater, radiators or under moist and wet environment conditions.
Trouble
Possible cause
Suggested remedy
No AC
output
Red LED lit,
green LED not lit
or beep sound
alarm
Battery over discharged, low battery
protection
Change the battery or charging for it
Over temperature protection
Remove or reduce load, wait for inverter to cool
Overload protection
Remove or reduce load or use more big power
inverter
Short circuit protection
Reduce load or remove short circuit
No AC
output
Red and green
LED not lit
Fuse burned
Change fuse or contact technician for support
No AC
output
Red and green
LED not lit
Fuse burned
Change fuse or contact technician for support
PCB broken
Contact seller for repair or change
Battery’s defective or poor connection
Change battery or re-connect the battery
Earth fault protection
Unplug the fault load
Strong collision cause the circuit loosen
Contact seller for repair or change
Battery run time is less than
expected
AC loads power consumption is higher
than the reated power
Use a larger battery or conect more batteries in
parallel to increase the back up time
Battery is old or defective
Replace the battery
Battery over discharge
Charge for the battery
Power dissipation caused by the too
long or thin cable
Use mor shorter /heavier DC cables
Trouble
Possible cause
Suggested remedy
When the public power is
available, inverter mode can’t
be switch to charge mode
Poor AC wire connection
Tighten connection or re-connect the AC
power
Built in fuse burned
Change fuse or contact technician for support
Inverter beeps long time but
still on working
Battery will be fully charged soon
It will be auto.stop the charge or you switch off
charger mode
AC input voltage under 170V/70V
Stop to use it or switch off the charger mode or
adjust AC voltage
Using time too long, high temperature
Switch off 10 minutes to cool down
Trouble
Possible cause
Suggested remedy
Cooling fan not working
Ir will working when in charge mode, fully
charged it will aio stop
It is normal
Cooling fan not working
When AC main power failure, it should
work in inverter mode, but it is not
working
Contact seller for repair or replace
Inverter output shows low
voltage
Reading voltmeters and can’t get
accurate data
Use a true RMS reading voltmeters
