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    JraeP62's Avatar
    JraeP62 Posts: 5, Reputation: 1
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    #1

    Jun 1, 2010, 11:18 AM
    Carrier thermostat is not working
    Carrier thermostat went blank, not working. No battery to replace. Checked fuse in air handler and it is OK. What could be the problem?
    JraeP62's Avatar
    JraeP62 Posts: 5, Reputation: 1
    New Member
    		  
    #2

    Jun 1, 2010, 11:19 AM
    Carrier thermostat is not working
    Carrier thermostat went blank, is not working. No batteries to change. Checked fuse in the air handler and it is OK. What could be the problem?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #3

    Jun 1, 2010, 11:22 AM
    Check to be sure 24 volts is available at the thermostat.
    JraeP62's Avatar
    JraeP62 Posts: 5, Reputation: 1
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    #4

    Jun 1, 2010, 11:56 AM
    Not sure how to do that.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #5

    Jun 1, 2010, 12:09 PM
    Quote Originally Posted by JraeP62 View Post
    Not sure how to do that.
    I hate to say this but if you do not know how to test electrical circuits you might be better off contacting a local professional to look into your problem unit with a visit to your home. I am afraid if I tried to explain to you how to use an electric meter to do the testing here I could not be complete enough to prevent you from damaging the meter or yourself during the test procedure.

    How did you test the fuse? OR did you just look at it?
    JraeP62's Avatar
    JraeP62 Posts: 5, Reputation: 1
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    #6

    Jun 1, 2010, 12:21 PM

    Thank you... I am trying to get pro out here. Been all weekend with no air. Thank you again
    JraeP62's Avatar
    JraeP62 Posts: 5, Reputation: 1
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    #7

    Jun 1, 2010, 12:22 PM

    I have a carrier non programmable thermostat. Do you know what other therm might be a compatible replacement?
    ezryder28's Avatar
    ezryder28 Posts: 1, Reputation: 1
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    #8

    Jun 29, 2012, 09:04 AM
    I have my carrier thermostat set at 79 for cooling. A couple of days ago the thermostat showed it was 83 in house and AC kept running and temp stayed at 83 even though it is set to 79. Now it won't go below 81 and never shuts off unless I set temp to 82. Any help would be appreciated.
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