My furnace lites,but won't stay lite

Is it oilfired or gas? How long does it run? Is the Primary relay reset kicking out?

Clean the flame sensor (if so equipped). Look for a ceramic-insulated steel rod with a single wire, usually attached to the burner assembly at the opposite end from the ignitor. Remove it and clean with abrasive cloth or steel wool.

I have a similar problem as csavagel. My gas furnace ignites but the flames go out from time to time. I have tried cleaning the burnings and this solves the problem for a day or so. The heating element seems to be working once I turn the furnace switch off for about 20minutes and the flames ignite, but sometime goes out after 3 or so seconds. Thank you in advance.

I have a similar problem as csavagel. My gas furnace ignites but the flames go out from time to time. I have tried cleaning the burnings and this solves the problem for a day or so. The heating element seems to be working once I turn the furnace switch off for about 20minutes and the flames ignite, but sometime goes out after 3 or so seconds. thank you in advance.


I was just trying to help the coldman he was having problems with his furnace.There was a little missing info on his post for a good reply.

Jasper62 Check to see if the flu is clear and there is good draft.There can be a few things that make the flame go out ,highlimit flame roll out switchs will shut it down,weak gas pressure/dirty orfices.For a better answer from me I would need more info on the unit you have and how it is installed with gas info/natural?propane?directvent?powervent?Brand and BTU size of your unit. Ect... This site is fun and great info for me. I enjoy reading these posts and trying to help. Good Luck

csavage1 I will get back in touch after I look at some of the information I received from you. I may also need to give you more infor if it does not solve the problem. Thank you again.