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    best56's Avatar
    best56 Posts: 2, Reputation: 1
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    #1

    Jul 28, 2008, 06:12 PM
    Central air keeps running
    I am so tired. I've had the thermostat changed twice and the air conditoner keeps running. It passes the set temp and keeps on running.:confused: the unit itself is less than 5 years old I am at my wits end. The air is very cold so cold that I have to turn the unit off manual by turning the swich off from the base. Any suggestions as what I should do?
    All suggestions appreciated :cool: no cold

    best56
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #2

    Jul 28, 2008, 06:23 PM
    Are you shutting the unit off at the thermostat? Is this a programmable thermostat or a mercury type? And why did you change the thermostat in the forst place? The more information you give, the better chance we can help you.
    ryan skaggs's Avatar
    ryan skaggs Posts: 3, Reputation: 1
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    #3

    Jul 28, 2008, 06:39 PM
    I have a suggetion on what to do with your air-conditioning. However you should have some who knows about electrical parts before touching anything. I would suggest that some one check the condenser contactor on the outside unit, and see if the contactor is sticking closed,or welded shut by loose electrical connections causing arcing. If the contactor is OK, I would suggest that someone check tha low voltage wiring from thermostat to furnace and condenser. DO NOT CHECK ANY ELETRICAL PARTS UNLESS YOU ARE CERTIFIED TO DO SO... I hope my suggestions help. RS
    best56's Avatar
    best56 Posts: 2, Reputation: 1
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    #4

    Jul 29, 2008, 05:46 PM
    Quote Originally Posted by best56
    I am so tired. I've had the thermostat changed twice and the air conditoner keeps running. It passes the set temp and keeps on running.:confused: the unit itself is less than 5 years old I am at my wits end. the air is very cold so cold that i have to turn the unit off manual by turning the swich off from the base. Any suggestions as what I should do?
    all suggestions appreciated :cool: no cold

    best56
    The unit froze up and would not run at all. We had the thermostat changed because we thought it was the cause of the dilemma. At first it was programmable which worked fine then it just went kput now we have the old mercury type because my husband thinks it's better (not so to me) any way I dread to think of on the hot hot days what will happen when we need it most and it is not perfoming at it's peak. I wanted to get some suggestions before I call out the AC man.
    Should I let the unit run like this or should I turn it off?
    Thank you for the input.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #5

    Jul 29, 2008, 05:58 PM
    Just call for ON SITE service. Actually there are no used serviceable parts for you to play with unless you have all the proper tools and know how to use them.
    jagswinjagswin's Avatar
    jagswinjagswin Posts: 2, Reputation: 1
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    #6

    Sep 7, 2008, 09:20 AM
    Mine is similar but when the temp is reach the outside unit turns off BUT the handler inside keeps blowing. It does not shut off, it will run all day and night and keep running. I have to turn it off at the circuit breaker. The "fan" switch on the thermostat is not on, it is set to auto. My filters look clean. I changed the hepafilter filter. How to make it stop??
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #7

    Sep 7, 2008, 06:26 PM
    Sounds like your fan relay is stuck. When you turn off the circuit breaker, then turn it back on... does the fan start if the temp is reached?
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #8

    Sep 7, 2008, 06:49 PM
    This post is from July 28 of 2008.
    jagswinjagswin's Avatar
    jagswinjagswin Posts: 2, Reputation: 1
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    #9

    Sep 8, 2008, 10:28 PM
    Quote Originally Posted by Missouri Bound
    Sounds like your fan relay is stuck. When you turn off the circuit breaker, then turn it back on....does the fan start if the temp is reached?
    Yes, it just starts and keeps blowing even if the temp is reached and/or the outside unit is blowing.
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #10

    Sep 9, 2008, 04:12 PM
    T-Top... I noticed the date... have you noticed it's still active?
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #11

    Sep 11, 2008, 07:01 PM
    My bad I did not notice a new post that has similarity to the old post but was different.
    Sunny44's Avatar
    Sunny44 Posts: 1, Reputation: 1
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    #12

    Jul 25, 2012, 10:14 AM
    I just turn everything off and the AC is now working perfectly. Thanks for the info. God bles you all.
    staceybeck01's Avatar
    staceybeck01 Posts: 4, Reputation: 1
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    #13

    Nov 21, 2012, 08:57 AM
    My sister was having a problem like this and had to call air conditioning service in Florida. Turns out there was problems with the thermostat and they had to get a couple of new parts for it. It works now though, (just in time for winter haha) but it might just be easier to have someone come and look at it. http://www.bensonshvac.com/
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