10. Inverter troubleshooting guide
Problem
Possible cause
Solution
Low output voltage
Using a voltmeter which can't
properly read the RMS voltage
well
Use a true RMS reading meter
Low input voltage and watts
indicator in the red zone
Poor battery condition
Check the batteries and the
vehicle alternator condition
Overload
Reduce load
Improper Installation
Check each inverter's
installation steps
No output voltage and volt
indicator in lower red zone
Low input voltage
Recharge the battery, check
the connections and cables.
No output voltage and no
voltage indication
Inverter off
Turn the inverter on
No DC power to the inverter
Check the wiring
Reverse DC polarity
Check battery fuse and the
installation
Replace the inverter.
Damage
caused by reversed polarity is
not covered by the warranty
Low battery alarm on all the
time
Poor battery condition
Charge or change battery
Poor DC wiring
Use proper cables and check
connection
Poor DC terminal connections
Use proper tool
No output voltage and
overtemp indicator on
Thermal shutdown
Reduce load
Allow inverter to cool off
Improve ventilation
Improper installation
Install properly
No output voltage and
overload indicator
Short circuit or wiring error
Check AC wiring
Inverter overload
Remove or reduce load, switch
the inverter OFF at least 5
seconds and restart the
inverter
Improper installation
Check the AC wires and
improper polarity
User’s manual
- 14 -
PDAxx00S / PDA1000/1800/3000
