Ok I have a 2005 vectra and just replaced my inverter with 12np20right from dimensions and the inverter works but no power to all my outlets ac works fridge work on lp so what is the problem
That means it has no power coming to it. It'll only 'SNAP' when the test button is pressed when it has 120Vac. They do go bad though, but I'd look for a tripped circuit breaker on the converter first.