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

    Jul 16, 2009, 11:40 AM
    Trane Furnace Blower Shuts Off After 4-6 hrs of use
    I have a Trane gas furnace with a separate central air conditioning unit that is 9 years old.
    When using my central a/c, I find that the blower fan shuts off after 4-8 hrs of use. After waiting several hours you can turn it back on and it works just fine for another 4-8 hrs.

    Is something overheating? I know that the garage gets hot but it has shut off when the garage wasn't that hot either. The control board was changed about 5 years ago (under warranty) after shorting out. I checked the LED diag red light, and I get a slow continuous blink, which indicates no error. Anything else I should check?

    Thank you kindly, Valarie
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jul 16, 2009, 11:50 AM
    It seems the capacitor for the blower motor might be defective or it could be the blower motor itself going off on the internal overload. I would just replace the capacitor first since you probably do not have a dedicated capacitor tester. If the capacitor does not do the trick post back. NOTE use the like same capacitor for a replacement.
    siberianair's Avatar
    siberianair Posts: 360, Reputation: -4
    Full Member
    		  
    #3

    Jul 16, 2009, 12:35 PM

    Could not have said it better myself... do what hcac1000 says.
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