The compressor starts and immediately stops. It goes again and stops. No cool air. It smelled like burning so I stopped it. After 20 mins. I tried again. Same situation.
Sounds like the compressor is seized up and the smell is from the clutch slipping when it tries to engage. If that is the case, you need a new compressor at a minimum.
SOURCE: RV air conditioner. Compressor running, fan stops before cool
The fan motor is getting hot and going off on the internal overload in the motor.
This is caused by either a low voltage, a bad capacitor, or tight or dry bearings in the motor.
To check the bearings turn the power off to the unit, then spin the fan blade if it spins freely then the bearings are ok.
To check the capacitor you will need some kind of tester or you can buy a capacitor and replace it, that's what a lot of people do. They usually don't cost very much.
To check the voltage you will need a voltmeter and measure the volts at the unit.
SOURCE: Brisk air, dometic rv a/c unit I can't get the
you must check the amp draw with a meter to verify if the compressor is locked up. if it draws L.R.A. amps which should be listed on the compressor it is lock up and needs replaced.
Phil
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