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    sam richmond's Avatar
    sam richmond Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 28, 2007, 06:26 AM
    Heating and A/C
    Good morning, I live in Georgia and we tried to start our A/C yesterday. The compressor never turned on however the fan from the furnace did. Now the fan in the furnace will not turn off even when I remove the thermostat. The only way to turn off fan is to "kill" power to the furnace however when power is restored the fan goes on right a way I assume that the fan relay maybe stuck on. But do I have 2 problems maybe the compressor relay stuck off?

    Thanks ps I am an electrian so I can play some what with the system but I am not a HVAC expert by any means.

    Sam
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Mar 28, 2007, 01:39 PM
    Yes you could have a stuck fan relay. Since you are a electrician you can test that and also check for the t-stat wiring for continunity and grounding. I would check the fuses or breakers for the outside unit. See if there is a 24 volt signal going to the contactor/starter for the compressor. If you have 24 volts the coil should be pulled in to run the unit.
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