I don't use my A/C a lot, despite being in the desert southwest. Camping for me tends to be at higher altitudes, and we usually travel at times of year it's just not needed. Last fall though we were in OK and at an RV park in full sun where it started getting toasty inside. Hitting the switch resulted in a hum from the Coleman and nothing else. Thought it was our shore power so tested it with the genset, same result. Had to try something though so went up on the roof with tools and a meter, and didn't even get that far. Got the cover off and tried to spin the fan and it was pretty stiff to turn. Got my mechanic in a can (WD40) and gave the bearing on the visible end of the motor a spritz, worked it a bit and had DW hit the power from below. Sat there and hummed but when I gave the blade a shove off it went. I considered that a win, put the cover on and we left the fan on for the rest of the day and let the thermostat cycle the compressor. Next day I tried it and it was stuck again, and I repeated the same exercise. That's where I left it until now. Working on the RV the past few weeks now (been in the 60's lately) and it's stuck, so will shotgun the whole deal, fan motor and new caps for the fan and compressor. 20 years is a pretty good run.
Mark B.
Albuquerque, NM