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

    Dec 30, 2006, 10:35 AM
    Heat pump condensing unit will not shut off
    My heat pump condensing unit has been running for several hours now without shutting off. It is blowing out cool air. When I turn unit off manually and turn back on, you can feel the heat for a few minutes and then it goes back to cool. Please help...
    RichardBondMan's Avatar
    RichardBondMan Posts: 832, Reputation: 66
    Senior Member
    		  
    #2

    Dec 31, 2006, 08:56 AM
    Quote Originally Posted by Loreman
    My heat pump condensing unit has been running for several hours now without shutting off. It is blowing out cool air. When I turn unit off manually and turn back on, you can feel the heat for a few minutes and then it goes back to cool. Please help....
    I am not a HVAC mechanic but in the last two weeks, I had the same symptoms you are describing, called my HVAC company and they diagnosed the problem as a stuck valve in the compressor that required a new compressor. The mechanic ran a series of electrical test on the connections on the inside air handler and we brought to his attention unusual noises coming from the outside unit/compressor. I would have an experienced HVAC out to diagnose the problem.
    esquire1's Avatar
    esquire1 Posts: 2,483, Reputation: 209
    Ultra Member
    		  
    #3

    Dec 31, 2006, 09:05 AM
    Get a qualified HVAC tech to check it out. Sounds like the reversing valve or the coil for it is bad
    RichardBondMan's Avatar
    RichardBondMan Posts: 832, Reputation: 66
    Senior Member
    		  
    #4

    Jan 1, 2007, 06:51 AM
    Esquire1 might be right, he mentioned the reversing valve might be bad, that's exactly what was wrong with my compressor and I was told by the HVAC mechanic that the compressor had to be replaced.
    bsaah's Avatar
    bsaah Posts: 66, Reputation: 0
    Junior Member
    		  
    #5

    Mar 31, 2008, 02:31 PM
    The unit has frsot inside it if the temp is lower then 30 or 20 degressthe unit will start having frost in the unit

    Call a high qulified hvac man
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