Long time reader, first time poster here. First want to thank you for all of the great advise we've found here in the past!
Currently we are having a bit of a conundrum with a Heil N8MPN propane furnace. When the heat is turned on the inducer motor starts and after a 15 second delay a relay fires, but the igniter does not light up. We've replace it with a known good igniter, so we know that it is not a bad igniter.
Searching has not turned up any related problems and fixes that we can find. Any idea on what might be wrong or what we should try next?