Question about Dometic Rooftop RV Air Conditioner

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Fan will not turn on. AC unit does, however. Any ideas about the fan? Thanks

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More than likely the fan motor is hot to the touch which indicates a electrically burned up motor.

You're only chance would be a bad fan capacitor. This will be a small gray or silver thing about the size of a large cigerette lighter. If' it's bad - it will invariably be 'bulged' somewhat. These capacitors are cheap - probably less than $15 retail, and easy to change out. Problem is finding one. You'd need to go to a Air Conditioning Supply House (Wholesaler) to find one.

Note: if the fan motor is 'not' hot to the touch and the fan capacitor is bulged - then it's a good bet that the capacitor is bad and you'll get off fairly cheap - even if you call a service tech.

If it's a bad fan motor you'll probably looking at $200-$300 repair bill.

good luck!

Posted on May 05, 2010

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Fan motor was bad replaced it the relay circuit board was burnt also replaced, all parts are same as old, heater furnace comes on with the blower motor also tested the thermostat and is fine but still no fan for the air conditioner comes on

Posted on May 18, 2010

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Posted on Jan 02, 2017

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SOURCE: maytag window ac unit

Feel the motor and see if hes hot ...... spin the fan by hand and see if it spins freely  if not the bearings have seized up.   So either rebuild the fan motor simply by replacing the bearings and oiling them and that should fix your problem.    IF the fan spins freely   OHM out the fan  and make sure there is no shorts or openings in the fan.     if your fan motor checks out good both mechanically and electrically  then your next step is to check the capacitor and control board

Posted on Oct 14, 2007

  • 73 Answers

SOURCE: AC unit fan won't turn

Yes those are the Thermostat Wires to the Unit Reconnect and you should be Fine.

Thanks
Please Rate me
George




Posted on Apr 28, 2009

  • 227 Answers

SOURCE: my outside ac unit is humming and warm..but fan not turning!

Souns like the compressor is running but the cooing fan is not. First you should see if the fan is blocked . Then see If the fan motor is getting power. If the motor is getting power it could be that the motor is bad. If the motor needs a capacitor to start that could also be the problem. Look for a cylinder shaped protrusion on the side of the motor. If these all check out then whatever tells the fan motor to come on is not working. Sorry but I cant help with that. Good luck!!

Posted on Jul 05, 2009

  • 227 Answers

SOURCE: Outside AC Unit Making Noise but the Fan is not working

It could be the capacitor on the fan motor has gone bad.

Posted on Jul 20, 2009

  • 674 Answers

SOURCE: The ac is not fully

The first thing you should do is make sure the fan turns freely by hand. If it does then check the capacitor and replace it if it's bad. If the fan doesn't turn freely then you may need a new fan.

Posted on Aug 18, 2010

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