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    aljd88's Avatar
    aljd88 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 5, 2012, 09:41 AM
    Troubleshooting heating and cooling systems
    Unit will start up and run for about 15-20 secondsand then shut off. As soon as the unit stops running it will start back up and run for 15-20 seconds again, it continues to do this constantly. I have shut the unit off and let it sit and then start it back up but it contunies to do the same thing.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Aug 5, 2012, 01:45 PM
    If the unit has a low pressure cut off device then the unit is low on refrigerant.
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