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

    Feb 9, 2010, 02:43 PM
    Floor furnace troubleshooting
    Floor furnace lights up and heats, then turns off and won't turn on again until the middle of the night. Replaced thermostat from a 24 volt to a 750 millivolt and same results above. Then I took the two wires from the thermostat and connected them together. Floor furnace turned on fully. After about 7 minutes, furnace turned off. Any ideas?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Feb 9, 2010, 03:04 PM
    I believe you are having a overheat situation OR the safety limit control is defective or out of range.
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