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Fan motor smokes on medium speed. - Heating & Cooling

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If you have a motor that is smoking that is not a good thing, sounds as thought one of the windings are going bad, I would highly recommend replaicing versus any kind of repair.

Posted on Oct 11, 2013

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Sounds like the fan is defective. All internal wiring from the switch to the motor is factory installed. The fan has power going to it. Just to make sure, double check the wiring from the ceiling fixture to the fan.
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The remote (the hand held transmitter) controls the speed by raising and lowering the frequency of the current which is 60 cycle coming to the fan ceiling box. If the fan speed -selector switch (usually a pull switch) is set to high, when the remote (transmitter) signals the receiver to change speeds, the frequency of the current is changed by the receiver (the receiver is usually in the fan housing).

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What you need to do is, with the new motor, you will have neutral, and speed 1, speed 2, speed 3, etc. Hook one of the original black wires to neutral (it would be best to trace which of the two black wires is connected to neutral, and connect this one.).

Black on the new motor is probably High speed, red is probably low, orange is medium speed. Hook the remaining black wire to one of these, and no more than one of these, or you will smoke the motor again.

Attach a wire cap and/or electrical tape to the remaining wires to insulate them from contacting anything else.


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