First blizzard warning in Wisconsin for over 10 years and our furnace decided to stop working this morning. At least I was home because of the weather. Still had to drive a hr round trip in the snow and hope the after market sensor works. It is, for now…
I had a flame sensor go out last year. The tech could get it going by just cleaning the sensor, but did come back and replace it when the part came in.
Sadly, I gave up my own troubleshooting when I saw the computer control was flashing an error. Would have saved me a couple hundred bucks.
I looked for some videos about why it wouldn’t stay lit. They said the same, clean it off. But mine had a pretty obvious bad spot so I went and found one.