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    redskinsfan3's Avatar
    redskinsfan3 Posts: 1, Reputation: 1
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    #1

    Nov 1, 2007, 06:20 PM
    Heat does not come on on auto
    My ac has work good all summer and now my heat did not come on when I turned it on auto it works only on fan. Could the problem be a contactor?
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #2

    Nov 1, 2007, 06:55 PM
    It's a chance it may be the contactor but unlikely. If you turn it back to cool will it run? If it will you have a low voltage problem if it's a heat pump. If it will not come on in cooling check all breakers going to the system.
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