Question about Heating & Cooling
The flame sensor is not sensing that the flame has come on....the flame sensor could be dirty or the could be ignition module problems...
I am assuming that this is not a new installation....because reveres polarity can cause that also....
I would clean/ replace the flame sensor first and then from the the control board will ned to be replaced if that don't work.....
Have had to drive a totally separate ground rod and ground the furnace separately in one extreme case...
Posted on Nov 15, 2010
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Posted on Jan 02, 2017
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