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    mary10's Avatar
    mary10 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 19, 2009, 04:45 PM
    Ac power is on but unit will not come on
    Ac power is on but unit will not come on.
    mygirlsdad77's Avatar
    mygirlsdad77 Posts: 5,713, Reputation: 339
    Plumbing Expert
    		  
    #2

    Aug 19, 2009, 07:18 PM

    How do you know you have power to the unit. Breakers on, are fuses in disonnect outside good? Does the blower inside the furnace come on? Need more info here, and we will try to help you out.
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
    Ultra Member
    		  
    #3

    Aug 19, 2009, 07:20 PM
    Maybe there no low voltage (smaller tstat wire {24 volt}) sending power to the contactor in condenser unit

    But first have you checked with a meter,are you sure there is high voltage 230 volts at the unit

    Is there any sounds whatsoever coming from the condenser unit when tstat is calling for cool or ac to be on?
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
    Ultra Member
    		  
    #4

    Aug 19, 2009, 07:22 PM
    Dad77 answered while I was writing my long letter, :),:)
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