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furnace won't fire
I have a work shop in my barn. I have installed a used lenox model # G1604/5-125-1 in the shop it ran great for about 6 weeks now it won't fire. It has an electric start and the pilot light comes on when the thermostat is turned on but the gas valve never opens for the main burner. I have used a volt meter to try to determine what is happening. By using the shut off switch on the door to turn it on and off I got the following information. The vent fan comes on then on the controll box the leads TH ( induced draft), PV , and the senser wires all have power. The ignition, TR, MV, and Mvpv leads do not have power. Any ideas on what the problem could be? I would be glad to try and get more info if it would help just ask the question and I will try to answere. Thank you for any help you can give.
Jim Bunton Just a painter
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