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    pathondo's Avatar
    pathondo Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Nov 28, 2006, 04:44 PM
    NG Furnace will not turn on
    Make: RHEEM
    Model: RGDO 06NC ER
    Installed: 1990
    Problem: Observe glow in burner area from ignitor but the gas won't turn on. After a few seconds the glow will turn off. The Hot Surface Ignition Module was replaced in 1997. Please advise.
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
    Ultra Member
    		  
    #2

    Nov 29, 2006, 02:31 PM
    Some of those3 older Rheems have a pressure switch or limit device inline with the gas valve. You will need to track the 24 Volt hot leg wire from the board to the gas valve checking voltage at every device to find out which one is open. If you have 24 V at the gas valve shortly after the igniter begins to glow, you will have to replace the valve. Just a note, after the ignitor glows there will be a small click from the circuit board, it will only send voltage for a few seconds before it realizes there is no flame and stops the voltage.
    pathondo's Avatar
    pathondo Posts: 2, Reputation: 1
    New Member
    		  
    #3

    Nov 29, 2006, 08:25 PM
    NorthernHeat: Thanks for the troubleshooting tips. Am leaving for vacation in the morning. I will do as you suggest upon my return.
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