View Full Version : york diamond 90 pilot not staying lit
02-14-2007, 06:58 PM
I have a tenant who has this furnace and says that the pilot won't stay lit and it keeps blowing cold air. any ideas?
02-14-2007, 07:19 PM
The thermo coupler is shot.
02-14-2007, 07:22 PM
Have him use some light sand paper or grit cloth on the flame sensor. Clean it up and it will probably work like a charm. (I have that same furnace)
02-14-2007, 08:05 PM
thanks so much!!..Vent was clogged with snow!!.. cleared it out.. and wallah!!... Why can't all repairs be this easy!!!!!???...The whole damn city is under 3 feet of snow!!