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Heater won't ignite even after replacing ingniter. seems to aspirate ok

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Hi, was the ignitor that you replaced of the hot surface type/ glow type, or the ignitor module box? I will say of the glow type and see.When the inducer motor comes on, you will have a pressure switch that must close for the ignitor to come into play first. This switch will be located in the circuit after the inducer motor. Some have a reset, but most do not. You can use a jumper wire to bypass this switch, one side to the other, and if it fires up the switch is faulty.Sounds to me this is you're problem. Please try and take this step as it is only 24 volts and very easy to check.If you find this to be the problem, do not leave the jumper on as this is a safety device. You will need to get one at a appliance parts house or heating and air parts house.If the ignitor glows, the switch will be good. You will need to go to the main gas valve to see if you are getting voltage to the pilot coil after the ignitor glows.You will see on the valve MV/PV and C.If you have no volt meter, you can feel, listen for a click, the pilot coil energizing. Check at the burners to see if you have a flame roll out switch that is resetable. This may have tripped. If you have a board with led lights, look for a chart on the inner panel, and it will lead you to a place to start looking, according to how many flashes, blinking Leds you have going on.Try and do these checks for me to solve this problem. If you can't find the problem, send me more information on the brand, model and age of this unit so we can sovle this together. Plese let me know. Sincerely,

Posted on Dec 11, 2009


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