Low input voltage or current. Bad input voltage sensor. Test by connecting directly to battery (with jumpers or make an adapter). The wiring or connection to your power port (cigar lighter) may be bad.
If it works at the battery, it is the car wiring. If not, it will cost more than the 25 dollar price tag to have it repaired. Just replace it (try http://search.harborfreight.com/cpisearch/web/search.do?keyword=inverter )
Answers & Comments
Low input voltage or current.
Bad input voltage sensor.
Test by connecting directly to battery (with jumpers or make an adapter). The wiring or connection to your power port (cigar lighter) may be bad.
If it works at the battery, it is the car wiring. If not, it will cost more than the 25 dollar price tag to have it repaired. Just replace it (try http://search.harborfreight.com/cpisearch/web/search.do?keyword=inverter )