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    lwilson60's Avatar
    lwilson60 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 11, 2009, 12:48 PM
    Humming noise coming from thermostat
    My thermostat to the fan and furnace is making a very loud humming sound. I've tried shutting the unit completely off and it still makes this noise. The thermostat is about 10 years old. Would replacing it fix the noise problem or do I have a bigger issue?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Dec 11, 2009, 02:50 PM
    Brand and Exact model number
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