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    sing2me1511's Avatar
    sing2me1511 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 7, 2007, 09:22 PM
    Why is my heater not working?
    It keeps flashing 4 times and it says that it is an open temperaure limit circuit what does this mean? It is a trane xl80
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Mar 8, 2007, 11:31 AM
    Your limit has been triggered by higher temperatures in the furnace than normal. This is a safety device. Look for a manual reset red button on the limit. If none there you might have to replace the control.

    Since it went off on a safety device it might be wise for you to call a HVAC contractor since there could be other problems with your unit that caused this to happen.
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