Quote:
Originally Posted by Calamity
Oh.. sorry. It’s running about 30 seconds and then goes off. So we’re thinking it’s probably a bad igniter.
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Do you hear any sounds of sparking occurring? If the fan is shutting off after 30 seconds it sounds like the sail switch is not proving air flow from the fan to the control board. On some furnaces the sail switch is mounted on the front of the motor housing (easy access); on others it is inside the fan housing and a PIA to get to. Sometimes they stop working because of pet hair or other debris that gets caught up in the switch mechanism. There are various videos on you tube showing some examples of checking the sail switch.......or it could be a simple loose wire connection. It might well turn out to be the board but check your wiring and sail switch operation.
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