8531 /Burner Issue UPDATE--Photos ( Fixed!)
With the furnace running, where do you put the pos and neg leads of the meter? Or can you do it at the Tstat inside with the furnace on? I want the 12v to the board, not the voltages the board puts...
Forum Discussion
Nothing special about the probes, generally there is nothing to go wrong with them.
Detection issues tends to be more with lack of good flame, lack of good connection from control board to ground or bad control board.
Flame must be correct with the probe inside the blue portion of the flame. Incomplete combustion results in poor burning flame which results in less or no blue portion and less or no conduction on the probe.
Best to use diagnostic info in the link I posted which measures the current flowing through the detector rod.
If flame detect current checks out then issue most likely is the control board failing.
Detection issues tends to be more with lack of good flame, lack of good connection from control board to ground or bad control board.
Flame must be correct with the probe inside the blue portion of the flame. Incomplete combustion results in poor burning flame which results in less or no blue portion and less or no conduction on the probe.
Best to use diagnostic info in the link I posted which measures the current flowing through the detector rod.
If flame detect current checks out then issue most likely is the control board failing.
