york diamond 90 pilot not staying lit

[fast pasquale]

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?

[Gary Swart]

The thermo coupler is shot.

[GoTanklessToday]

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)

[fast pasquale]

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!!