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    aprentice100's Avatar
    aprentice100 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jul 19, 2009, 11:20 PM
    Indoor unit air handler
    Hello, help ,I installed a 3 ton unit heat pump and air handler (goodman 13 seer),When I tried to install the new thermostat I think I touched the wires and burnt the transformer, when I replaced the transformer and turn the unit on it keeps blowing the fuse from the circuit board on the air handler , I noticed that When I disconnect the red and blue wires from the outside heat pump the air handler starts and it does not blow the fuse, did I messed up the circuit board or I wrongly connected the wires ? Help!!
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jul 20, 2009, 12:00 AM
    You need to track down the low voltage circuits and see if you have a short or a defective component. That is the only way to know for sure.
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