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

    Jul 14, 2008, 09:49 AM
    Train XL 1200 fan but no cool air
    I have a Train XL 1200 and yesterday afternoon it began blowing out warm air. I checked the thermostat and then reset the circuit b breakers on the house box with no repair. Today I checked the fuses on the outside of the unit itself and all was good. I unpluged the thermostat for about 15 minutes to let it reset and it had no effect.
    The unit is on the roof and I checked it. The fan on the roof is not working, it will turn freely if pushed. But I hear a short humming sound that lasts about 2 seconds
    About every 2 minutes or so.
    Any Suggestions?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jul 14, 2008, 11:28 AM
    Could be the condenser fan or capacitor.

    It could also be the compressor.

    If you have a amprobe take a reading during the time of the buzz to see what the draw is. That will be a determining factor.
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