Sail Switch or Something Else?
Suburban SF-30F about six years old. Problem has been ongoing for several years but now has hit critical. Every once in a while over the years the unit would fail to light, shut down, I would turn ...
Forum Discussion
Several possible issues.. You said it "Fails to light"
Mine did much as yours twice the second time by listening to it (Epically from outside) I could tell it was lighting, The problem was IT did could not tell it was lighting. Had to replace the control board with a Dinosaur borads replacement, (Way better board)
The first time I found the spacing on the spark gap was a touch excessive.
My parents had an oil fired furnace in their house..... Same problem.
Mine did much as yours twice the second time by listening to it (Epically from outside) I could tell it was lighting, The problem was IT did could not tell it was lighting. Had to replace the control board with a Dinosaur borads replacement, (Way better board)
The first time I found the spacing on the spark gap was a touch excessive.
My parents had an oil fired furnace in their house..... Same problem.
