Question about Intertherm Heating & Cooling
Furnace won't stay lit. Sometimes the furnace runs correctly but most times it stops before the blower comes on. Intertherm Model M2RC-080A-16BN. Ignightor glows, flame starts and after a few seconds the flame shuts off. Then it starts the cycle again. It goes thru this cycle a few times and then just stops and an LED starts blinking on the control board. I have replaced the flame sensor but it still does the same thing.
It sounds like the flame sensor is bad. If thats not the case you may need to replace the control board. You should make sure the flame sensor is directly into the flame.
Posted on Nov 25, 2014
Testimonial: "It turns out that the orifices had some soot inside them. The orifice nearest the flame sensor had more soot than the others and it was restricting gas flow to that area of the burners. The burner nearest the flame sensor was not igniting therefor, sending a signal that there was no flame. I removed, cleaned and reinstalled all orifices and the furnace works perfectly now. Thanks for your suggestions."
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Posted on Jan 02, 2017
Check the heat exchanger for a crack or hole. The room air blower is blowing back into the heat exchanger extinguishing the flame. Have it checked out today. Did you get it checked yet? Now. Have I stressed to you to get it checked out yet or have you been overcome by Carbon Monoxide yet?
Posted on Dec 19, 2008
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