Jadnashua
Retired Defense Industry Engineer xxx
I'd had the ignitor fail a couple of years ago, and had it replaced. It failed again, and I decided to replace it myself this time (it's pretty easy). The first one lasted nearly 10-years, the second barely 2. When I was removing it, I found that the clamping nuts that hold the plate in that anchors the flame sensor and the ignitor in were loose. Since the ground for both of those devices is made underneath those bolts...I think that the poor connection caused it to cycle way more times than normal, and that was the cause of the failure. Put the new one it, turned it back on, and it fired right up. FWIW, if you have one of these and haven't downloaded the manual, you might want to...even if you decide to have it fixed...it's nice to at least have an idea of what's going on. I had to call three places to find the ignitor in stock, but did find it locally, and the system cranked right up after replacing it. The small manual only shows some fault codes...you need the service manual to decode them all.
