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

    Jan 15, 2010, 09:52 AM
    Have a 30 year old lennox heat pumps not defrosting
    Heat pump is 30 year old . We have had very cold weather in Georgia the last 2 weeks. The outside unit freeze up allmost all the time . It 58 degrees today check high side in cooling mode, read 65 on r22. If it the defrost unit how do you check it. Thank you

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

    Jan 15, 2010, 03:13 PM
    Could be a defective defrost control in the outside unit. Get an electric meter and trace down the problem OR at 30 years of age it might be time to consider replacement.
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