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    Bob Brendle's Avatar
    Bob Brendle Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 22, 2008, 07:09 PM
    Central heating and air
    My central air unit quit on me tonight. It made a loud pop and quit and I checked all the breakers . Now My thermostat is blank and I can't even get the fan to come on manuely
    wmproop's Avatar
    wmproop Posts: 3,749, Reputation: 91
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    #2

    Aug 22, 2008, 08:31 PM
    If you have a volt meter you should start by checking for power at your furnace, you didn`t say if you had gas or electric furnace,, with gas ,should be 120 volts with elect. Should be 230 volts,you might have a blown transformer in furnace, it is the power sourse for the tstat and also sends low voltage to run all the controls, including the a/c,, let us know
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #3

    Aug 23, 2008, 07:59 PM
    Check all breakers going to the blower section side of the system. Turn the breaker all the way to off and the back to on see if that helps.
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