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You will need to measure Voltage supply from your stove to the IGNITOR, your electronic control board is probably not sending the voltage needed.
There is no reason for that to happen, it would most likely be a defect in the relay that is part of the control board,
Other possible reason would be a restrictive electrical contact through the pressure switch, the light-blue wire to it from the ignitor.
You could measure resistance of pressure switch as you close contact by sucking on the rubber tube that goes to it.
I did respond , Please read carefully
The pressure switch senses the presence of a functioning exhaust fan, It tells the control board tha fan is working.
Take the time to study your manual, it explains everything, and you need to know these thing in order for you to do maintenance on your unit.
Here is manual...
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Chow for now
Can you close if we are done?
Yes absolutely, remove tube and blow into it and check to make sure it's not cracked, it may be dry and brittle, cut off the end if thats the case, and also blow air into the nipple end where tube connects to combustion chamber.
That is because it thinks the exhaust fan is not running
Have you done complete maintenance like I mentioned previously?
Clip lead needs to be off before you start process, then when exhaust fan starts.. thats when you put your clip lead within 3 seconds.
Lets say you shut stove off, fan stops, LPS has to open contact to prove that exhaust fan is not bypassed
So when you re start stove LPS needs to not make contact, the control board says system can start
I have left for work and not at my computer until later.
There is just so much time I can spend with your issue
Read your manual thoroughly, part on sequence of operations.