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

    Jan 26, 2008, 11:17 AM
    How to change thermocouple on coleman 7900
    My pilot light will not stay lit. Somebody told me to change the thermocouple. I need to know how to get the old one out.

    Thanks
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 26, 2008, 05:45 PM
    Is this a mobile home? If it is you have to pull the entire burner out, change the thermocouple and purge the system upon re-assembly to get the gas to the pilot to lite.

    If you are not mechanically inclined or do not know what you are doing I suggest you call a professional. Gas especially propane gas can be dangerous to work on.

    Now if it is not a mobile home then the thermocouple will be right in front of the furnace mounted to the burner area along with the pilot just remove and replace.
    Johnny V's Avatar
    Johnny V Posts: 3, Reputation: 1
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    #3

    Mar 17, 2008, 02:19 PM
    I'm having a hard time pulling the burner out .Any suggestions?
    Johnny V's Avatar
    Johnny V Posts: 3, Reputation: 1
    New Member
    		  
    #4

    Mar 17, 2008, 02:19 PM
    How do I pull the burner out?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #5

    Mar 17, 2008, 02:35 PM
    On mobiles you usually have to unbolt the entire burner assembly plate from the furnace.This is after you disconnect the electric and gas line.

    If you are not mechanically inclined or do not know what you are doing I suggest you call a professional. Gas especially propane gas can be dangerous to work on.
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