Question about Dometic Rooftop RV Air Conditioner
My RV's AC fan started acting like it was winding down when it was on, and eventually just stopped, making a humming noise. I opened up the vent and then the cover to the blower, and the blower is turning very slowly. I tried to give it a hand turning, but it was hard to turn it any faster than it was going. I'm not sure if this is the capacitor, or my blower motor. Thanks for any help you can give.
It's the blower motor.........the bearings are seizing up when the motor is difficult to turn with power to it.
Generally, if the capacitor is bad, it won't turn at all or will quickly overheat and go out on internal overload.
If the motor feels "tight" when trying to spin it, the bearings are seizing and the motor will have to be replaced.
If there are oil ports, you might be able to spray some lubricant inside such as WD-40, but this does not always work and, if it does, it is only for a short time.....but it might get you by if you need the A/C and cannot get it repaired immediately.
I hope you find this information to be very helpful to you moving forward. :-)
Posted on May 04, 2010
Testimonial: "Thanks for the help. I'm going to have to buy another motor I suppose. Are they very hard to change out?"
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Posted on Jan 02, 2017
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