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    alb0189's Avatar
    alb0189 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 19, 2012, 12:50 PM
    Outside a/c unit fan motor issue
    I recently replaced a fan motor on my business exterior a/c unit. I replaced the 3/4 hp motor with an AOSmith 3/4hp motor. The new motor had it's own capacitor which I also installed. For some reason, the motor is getting hot and kicking off, leaving only 1 fan motor still running on unit. I've cleaned the coils on the unit, but still getting hot and shutting off.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jul 19, 2012, 04:39 PM
    Quote Originally Posted by alb0189 View Post
    I recently replaced a fan motor on my business exterior a/c unit. I replaced the 3/4 hp motor with an AOSmith 3/4hp motor. The new motor had it's own capacitor which I also installed. For some reason, the motor is getting hot and kicking off, leaving only 1 fan motor still running on unit. I've cleaned the coils on the unit, but still getting hot and shutting off.
    Correct voltage?

    Correct RPM ?

    Running in proper rotation?
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #3

    Jul 19, 2012, 05:04 PM
    Not an AC person, but what does one of the fans not working mean? I thought most had 1 fan motor in compressor unit?
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