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Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. First I’ll need some more info so I have a more complete picture of you situation.
I need the actual model number for your unit. It's on the rating tag which is usually inside the burner compartment.
About how old is this unit?
There is no ignition failure code on a 10 to 12 year old unit. What are the LED's doing? do you have HSI (hot surface ignition) or a sprak igniter?
Ok, does it generate an arc after the inducer fan gets going?
You have a new board and new igniter and no arc?!
Hello, if you can take an exceedingly well focused close up photo of the wiring diagram glued to the inside of the blower service panel and attach it here using the 'attach files' link to the left of your send button I will mark it up with trouble shooting instructions.
THat worked well, thanks, ***** ***** half an hour or so to mark it up for you
Hello again, while you are waiting, tell me please in gruesome detail exactly how you checked the two pressure switches... if you used jumpers those would need to be placed **after* the inducer fan was running for 2 to 5 seconds, not prior to the inducer fan running.
Hello, turn off power to the unit and unplug then replug each of the gang connectors two or three times, inspect for loose or corroded pins... replug all connections to the printed circuit board...
Clean the spark ignition rod and its ground with plumbers sand cloth and re-gap if its the original to 3/16"
we can go from there
THat will work, I get in at 8 am west coast time and am in until 9 pm
Thanks, ***** ***** facts it looks like a bad pin connection in one of the gang connectors failing after a few minutes run time, not easy to diagnose, but lets work in that direction, If it were a component problem you would not have been able to get it to fire at all.
Examine each pin socket, use a needle to mash the sockets a bit tighter