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

    Dec 4, 2006, 09:02 PM
    Lennox G12 Furnace won't ignite
    Hello, I have problems with my Furnace. I currently have a Lennox G12RD2-82-3 from 1980. Last week I replaced the furnace blower but now the furnace won't ignite. These are the conditions:
    --the pilot is always on
    -- I have replaced the thermocouple
    --the thermostat is OK
    --the blower kicks on after a while even though there is no fire.
    --when I changed the thermocouple it only ignited for a few minutes then
    Went back to pilot mode.
    --the wires seemed to be OK
    --the house switches are all on and there is current.

    Please help, the tech's charge too much and I am very desperate. I am getting cold.
    NorthernHeat's Avatar
    NorthernHeat Posts: 1,455, Reputation: 132
    Ultra Member
    		  
    #2

    Dec 5, 2006, 02:27 PM
    Is there 24 volts to the gas valve when the thermostat calls for heat?
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