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    rogelio roca's Avatar
    rogelio roca Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Jun 30, 2012, 11:48 AM
    Blower fan never stops
    The blower fan in my a/c unit never stops even when the thermostat is off.
    Everything else is working.
    Could the relay be bad. How you wire a fan relay.
    Thanks for your help
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #2

    Jun 30, 2012, 12:27 PM
    It may be a green wire from the thermostat, should turn off if disconnected at thermostat(bad thermostat), if still on may be a control wiring problem from thermostat to air handler or stuck relay/contactor.
    Follow wiring back from blower to find capacitor and relay.
    Capacitor is good.
    Turn off power when working on unit.
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