Question about Ruud Central System Air Conditioner
I need help wiring a new soft-start motor/blower into my gas pack. I have two black wires from the old belt-drive motor but the wiring schematic shows three, a black, orange and red. I hooked these two wires into the Low and Medium terminals on the new motor and got some bad smoke. I'm using the wiring drawing no. 90-23596-01 Rev. 4.
Chances are, you've smoked the motor. You basically put 120 volts across the speed windings of the motor when you did this.
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.
Posted on Jan 27, 2009
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