Question about Dometic Rooftop RV Air Conditioner

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My Duo Therm Brisk Aire has a bearing going out on the fan motor. What is the best way to get the motor out? Having trouble getting in to get the squirrel cage off of the motor shaft. Thanks Rick

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    Here is what we do:    If possible, we take the whole thing out; motor and fan blades together. Then we sand down the exposed part of the shaft. put penetrating oil on as much as the shaft we can reach. Loosen the set screw(s). If the shaft has a flat on it and you have the room put a cresent wrench on the exposed shaft while moving the squarle cage back and forth. on the shaft, working in the oil.  Put more oil on the shaft and slowly twist it off onto the shaft you have polished with the emery paper.     Baring that working, you still have two options. Take the motor to an electricial motor rrepair place . They can get you a replacment motor usually cheeper that anyone else. Thy likely can also get you the sqirrell cage fan or you can hack saw the shaft from the back(motor) side and take the shaft off that way. This should be a last resort as you may be able to disassemble the motor and Grease the bearings, and place the same motor back into service. I hope this helps.

Posted on May 10, 2009

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