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Comfortmaker furnace will not light!!

We moved into a house that had been unlived in for 2 yrs. when we went to turn on the furnace for the first time for the year it will not light and only blows cold air. it is a comfortmaker model number EED24B15C2 with a serial number of X034406879 the blinking light is green and is displaing a error code I believe of 3 but we do not have a manual for this furnace. it turns on but dose not click like it is trying to light though we did check and it has spark.

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  • eyeore63 Nov 18, 2009

    I do not hear any clicking when it starts up, gas is getting on the line as we checked that but it is not coming out the gas valve ( I think ) when it goes to start up it buzzes but no clicking



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Make sure you have gas to the unit and the switch on top of valve is turn to on. Can you here the gas valve click? It igniter comes on and a delay and the gas valve should come on. Kill power to furnace to reset control board. Rus Let me know how it goes.

Posted on Nov 17, 2009

  • James Stopp
    James Stopp Nov 18, 2009

    You need a volt meter to see if you have 24 volts to the valve. Turn on furnace and let it go thru cycle hold test leads across terminals on valve if you have 24 volts and no gas flow valve is bad. If you do not have 24 volts you have control problem, high limit, rollout switch,draft motor. switch. These controls hold open the circiut to the valve. If these are good you have a bad control board. If so call a service tech for free estimate the control boards go from 29 to 89 dollars each labor about 75.00 If your furnace has not been cleaned in a while you need to have that done just for to be safe. Rus let me know.



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