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

    Jul 22, 2008, 10:06 AM
    A/C running a long time
    I have a Lennox air conditioning unit that is about 20 years old. It has worked okay for the most part, but just the other day we noticed that it was running a long time before turning off. It does keep the house at the setting we put it at. (78). The concern was the lines from outside had a lot of condensation on them and where it enters the coil area there was a chunk of ice. Outside the lines had frost on them. Could it just be low coolant? We did have a leak fixed about 4 years ago.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jul 22, 2008, 12:23 PM
    Sounds like you have a small refrigerant leak causing the frost up situation. Best to call a pro for a ON SITE inspection and repair. You can also check your air filter to be sure it is claen.
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