[natemoore]

Hey! We just purchased a sweet 2006 FEMA GS Cavalier for an incredible price. I've got some issues too, but my A/C works fine.

I had an A/C problem with my pop-up camper which has the same type of A/C. It vibrated badly then one day wouldn't run, only hummed.

I took the cover off the A/C to take a look-see. Turned out that the plastic fan was warped, causing the vibration, and it had actually come in contact with the housing which prevented it from starting this last time. I manually spun the fan and it started, but made a racket and vibrated. I trimmed off some of the blade to keep it from hitting the blade housing, but this made the vibes even worse. Cools well, though.

You can remove the cover easily with a phillips screwdriver. Just look inside and see what's going on. If the fan is spinning, then the compressor may be bad, or it just needs a charge of coolant.