||01-23-2008 02:51 PM
comfortmaker pilot lights but not burner
I've got this Comfortmaker furnace in the attic space, I've got it matched up to a NDN3/NDF series. It was installed around 4 to 5 years ago.
It has what appears to be an intermittent pilot, the draft fan kicks on, then the honeywell control module signals the igniter to spark and the pilot lights. The main burner is suppose to light after that, but it is not lighting (just the pilot is lit), it continues sparking and retries, then stops. I haven't
experienced a complete lock out yet. From looking at the pictures on a couple of websites, the pilot/sensor assembly looks different than most. There's only a single lead coming from the assembly and it looks like there is a combined igniter/sensor on the same rod.
Is this right? I am thinking it is this part that has the problem.