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    nlucas's Avatar
    nlucas Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 24, 2009, 04:31 AM
    A/C unit running no air blowing from vents
    Ouside A/C unit running but no air is flowing through inside vents
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jul 24, 2009, 05:50 AM
    It sounds like you have a blower motor problem with the inside unit. Check for voltage at the motor when it is supposed to be running and if not present trace the wiring back till you find the fault. Easy does it since you are working on a mechanical blower that could start working at any time and also you will be working with electric so observe all safety working conditions.
    hvacprof's Avatar
    hvacprof Posts: 9, Reputation: 2
    New Member
    		  
    #3

    Jul 16, 2011, 08:07 PM
    Before you go playing with voltage on a hot humid day be sure that you really know what to do. Forget the horror stories I have too many to tell...

    There are only three reasons for no air...

    Lack of airflow

    #1 Faulty Blower, Capacitor, Relay or circuit board

    #2 Plugged filters, plugged evap coil and or frozen coil
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