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    davidmorrow@ charter.net's Avatar
    davidmorrow@ charter.net Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 13, 2009, 09:12 AM
    How to wire heater blower motor
    I am rewiring a Rudd Heater Blower motor. 240v 3 speed motor and I am trying to wire it. It doesn't matter how I wire it, as soon as I hit the 240v breaker by the unit the motor runs. I have even disconnected the thermostat totally and the motor runs constant. I am not an electrician.(Obviously) Just a poor slob trying to save $300.00 during christmas.
    Wiring coming from unit as follows:
    Black - High
    Red - Low
    Orange - power?

    On the Blower motor (Marathon Electric X1001)
    labeled as follows:
    White - common (L1)
    Black - high (L2)
    Blue - medium ( not used)
    Red - Low

    The motor that came off was a different brand and no wiring diagram and colors were slightly different.
    Can somebody point me in the right direction? I am very confused at this point. The old motor non functional. Thanks
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Dec 13, 2009, 09:22 AM
    This might help but I think you have a 120 volt motor instead of a 240 volt motor. The white wire is a common on 120 volt motors only. Now if you can pick up a ground for that 120 volt motor you might be able to get it to work BUT you really would be better off with the correct motor.
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    2. hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #3

    Dec 13, 2009, 09:29 AM
    If the Marathon motor is the one you are trying to install it is probably a 120 volt motor you really need a 240 volt motor. Note you should also have brown and brown with a white tracer for the motor run capacitor. Can you post pictures of what you have now and what was there?
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