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The Coleman rooftop air conditioner on our rv suddenly stopped working. The motor spins freely but when I turn it on,it just buzzes loudly. Its hot in Arizona! Please help.

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Bad motor windings, locking up with voltage, no problems idle. Need a new motor.

Posted on May 06, 2017

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1 Answer

Air conditioner starts up then shuts off after a few minutes. It appears the fan moter is getting extremely hot. The fan spins freely. What could be the problem?


The fan motor getting extremely hot is an almost sure sign of a bad fan motor.
Check Capacitor
if not then you most likely will have to replace the fan motor.
Let a service man decide if your not sure
If this was helpful please rate me.
Leo Ponder Appliance-Tyler,Texas
imufo2@sbcglobal.net

Aug 06, 2010 | Dometic Rooftop RV Air Conditioner

2 Answers

Fan not blowing in coleman trs rv roof air


well check a few things first....have someone remove the cover and reach in with a hand and try to manually spin the blade...free spinning?....then tell the person below to click in the on postion while someone views from up top.....is it humming? or even trying to spin?....if not check the fuse on the RV that protects the A/C unit.....good?.....now replace the capacitor ( it the silver or gray can looking thing that the motor wires run to) only the correct size will work w/o causing further motor damage.

Jul 08, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

I need a motot for a coleman mach el


COLEMAN R.V. AIR CONDITIONER SERVICE AND REPAIR QUESTIONS
COLEMAN R.V. PRODUCTS
GO TO rvcomfort.com
Click on RVP (RV PRODUCTS)
Click on type of AC, if you can’t find the information you want there,
then click on contact us on the Green Bar.
You can get Service Support or Email address and Phone numbers.

Sep 28, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Coleman RV Roof AC Fan Issues


It sounds like you have a bad fan capacitor.
You might try replacing it, they don't cost very much.

Sep 22, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

The rooftop a/c comes on, but the fan does not blow air. On a 2004 starcraft popup trailer


Shut the power off to the unit, spin the fan blade to see if it spins freely. If it doesn't spin freely, (there appears to be a little drag when you spin it),the bearings are bad, if it does spin freely, then try moving the motor shaft from side to side if there’s any play in the shaft side to side then the bearings are worn and motor needs replaced. Then, check the capacitor, if it’s bulging even slightly, the capacitor is bad and needs replaced. Most of the time people replace the capacitor if motor seems ok. If capacitor is ok, turn power on to see if the motor is getting the proper voltage, if it is and not trying to run, then the windings are probably open, the motor's bad and needs replaced.

Aug 22, 2009 | Dometic Rooftop RV Air Conditioner

2 Answers

Coleman 7300 rooftop air conditionor wont operate


When they sit allot - sometimes the fan will stick.. Take the cover off,, turn it on and see if the fan is stuck.. Spin it by hand to free it up..

Jul 09, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

We have a Coleman 7300 rooftop ac unit. When the


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.

Jun 07, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

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.

Jun 06, 2009 | Dometic Rooftop RV Air Conditioner

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