no heat from suburban furnace

[David Carrol]

furnace worked day before yesterday than Yesterday evening I kicked it on but could get no heat. The fan comes on and runs for a few moments then goes off. I can turn the furnace off and back on and the process repeats. I took the cover off so that I could get to the furnace but really didn't gain much. I can see the motor and that is about all. I had my wife cycle the furnace while I watched............. It attempts to ignite; I get a blast of hot air out the exhaust but it does not sustain.



Does anybody have a suggestion.