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    ronbg's Avatar
    ronbg Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jan 21, 2011, 08:50 AM
    I have a carrier heat pump freezin up
    It is a split system we have changed the computer board,the defrost thermostat,the contacts and the unit won't stay in to defrost long enough to melt the ice off the out side what can I try next.it is 17yrs old and I don't have any more ideas of what to do HELP ?
    HVAC2011's Avatar
    HVAC2011 Posts: 2, Reputation: 2
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    #2

    Jan 25, 2011, 01:29 PM
    Either another bad defrost board or its low on refrigerant.
    Missouri Bound's Avatar
    Missouri Bound Posts: 1,532, Reputation: 94
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    #3

    Feb 11, 2011, 12:53 PM
    Have you checked the charge? Properly charged units will defrost in the time allotted. It was -12 here the other night, and mine defrosted without incident.
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