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Thread: Trane A/C blower fan won't shut off.

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    Fred B is offline New Member
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    Unhappy Trane A/C blower fan won't shut off.

    I have a home ac unit (Trane), about 2 tons,. The blower fan will not turn off once it starts. Even if I turn the thermostat to the off position. I have to turn off the circuit breaker to stop it. When I turn the breaker back on the fan will stay off until I restart it at the thermostat but will then stay on again. I have tried a different thermostat unit. Fred B

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    Java_Bob's Avatar
    Java_Bob is offline Handyman
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    There is a fan relay that is controlled by your stat, it could be sticking.
    Is it beer thirty??

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    Fred B (04-04-2009)

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    jnaas2 is offline Apprentice
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    How old is your furnance, the older ones had a fan high temperature limit switch that when it failed would sometimes cause the problem you are describing

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    Fred B (04-04-2009)

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