Symptom The AC load does not operate. The 
light comes on when the inverter is turned on or when the AC load is turned on or plugged in. The alarm may sound.
Possible cause | Suggested remedy |
The battery is discharged.
The battery voltage is excessive.
The AC load exceeds the 150 watt rating for the lighter socket.
Recharge the battery. Check the charging system.
Connect the inverter directly to
the battery. See “Using the Battery Clip Wire Assembly” on page 11 or “Hardwiring the Inverter to the Battery” on page 13.
Symptom The AC load runs for more than one minute, the
alarm sounds, and the 
light comes on. The inverter is warm or hot to touch. The alarm may sound.
Possible cause | Suggested remedy |
Poor ventilation or a high- temperature environment has caused the inverter to overheat.
Ensure that ventilation is not restricted around the inverter. The inverter will turn on again automatically when it has cooled sufficiently.
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