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    glavine's Avatar
    glavine Posts: 895, Reputation: 87
    Senior Member
    		  
    #1

    Jun 15, 2007, 04:50 PM
    Getting hot in here.
    My condinser unit is not running, I've checked the breaker box, gfi, cleaned the filter,checked the fan blades to see if they were seazed up, there not, I see no leaks,
    As of now I've turned the cooling off and I'm running the fan,
    What else could it be?
    I've got a little back ground in hvac, but it all in preventive maintenance,
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jun 15, 2007, 04:57 PM
    Sounds like the low voltage going to the outside unit is not working or a safety device in the outside unit is tripped.
    glavine's Avatar
    glavine Posts: 895, Reputation: 87
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    #3

    Jun 15, 2007, 04:59 PM
    What can I do to check this
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #4

    Jun 15, 2007, 06:37 PM
    If you have a tester trace the low voltage in the outside unit. There should be 2 wires from inside that have 24 volts across them. Then follow that circuit around all the devices unitl you find a break in the voltage. This will tell you which component is defective or not operating properly.
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
    Ultra Member
    		  
    #5

    Jun 15, 2007, 07:08 PM
    Is the indoor blower motor working when calling for A/C, Heat pump or A/C, what make of unit is it ? Need more info.
    glavine's Avatar
    glavine Posts: 895, Reputation: 87
    Senior Member
    		  
    #6

    Jun 16, 2007, 04:06 AM
    Thanks for the replys , I checked to see if I had power to the disconect and I had 220, I turned the cooling on and it did pull the contactor in to start the compressor , but all I get was a hum sound,
    esquire1's Avatar
    esquire1 Posts: 2,483, Reputation: 209
    Ultra Member
    		  
    #7

    Jun 16, 2007, 04:25 AM
    If the contactor pulled in you have 24 volts. Your capacitor is bad. Replace it with one of the same value. One way to test this is to give the fan an manuel start with a stick or long screw driver. If it starts up, sure side cap is bad. Use caution when doing this. Safety first.
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
    Ultra Member
    		  
    #8

    Jun 16, 2007, 02:27 PM
    If you have 230 volts at the L1 and L2 of the contactor do you have 230 volts on the T1 and T2 side of the contactor when it is closed and calling for cooling. If you do not have the same voltage leaving the contactor it's a bad contactor. If you do have the same voltage, It may be a run capacitor. Ether or they are cheap and easy parts to replace.
    glavine's Avatar
    glavine Posts: 895, Reputation: 87
    Senior Member
    		  
    #9

    Jun 17, 2007, 05:40 AM
    Well Guess What It Was! A Bug Crawled Into The Unit And Caused An Arch, And A 218.35 Bill.
    The Part Looked Like A Breaker. Thanks For All The Help, Much Apreciated, Eric
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