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

    Nov 22, 2007, 11:32 AM
    Wall heater doesn't stay on
    My wall heater doesn't hold a pilot. We light it, come back a few hours later and it's out again. I have changed the thermocoupling and thermostat.
    acetc's Avatar
    acetc Posts: 1,004, Reputation: 79
    Ultra Member
    		  
    #2

    Nov 22, 2007, 11:40 AM
    If this is a newer wall heater then it may be going off on the vent limit switch, located in the mixing box at the top of the heater (has two wires attached to it) If this is the case you need to check for proper venting. Good luck ,Mike
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