The blower starts and the ceramic piece lights up and then turns off after it fails to ignite. For the past few weeks it has had a hard time starting and staying lit. The light blinks once- the door says that this is a ignition failure?? What is wrong and what needs to be replaced???
It is probably not the glow coil, if this is a 80% regular
furnace, Make sure the induced draft blower is working. I once went to a house where I came across
this problem, the only difference is that it would acutually start and then shut off. I took the vent apart
at the furnace and found a bird that was preety cooked.
If this is a90% High Eff. furnace, make sure the pvc
vents are not plugged. To troubleshoot the intake
Vent. Remove the combustion plate and then turn
the unit on, if it runs you have a problem with the
intake vent.
You could temp. remove the exhaust vent and then turn on the power if it runs then your exhaust vent
is probably plugged. You could go outside and make sure the vents are free.
Make sure you have gas available, these are the most commom issues that could solve your problem
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