Gas and Oil Home Heating Furnaces - no pilot furnace lights but "blows" out when blower kicks on

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jasong72
12-16-08, 06:34 PM
i have a frigidaire furnace with an ignitor, i am getting gas, and i changed the filter, it wil ignite but will not stay lit, there is a switch i have to reset to get to ignite each time i think it is called to the flame roll-out switch. when the blower kicks on it seems like it blows out the flames or kicks that switch, not sure which happens first. can someone help point me to the next step

mbk3
12-16-08, 06:41 PM
Well the first comment is: Do Not Use, until it has been inspected by someone in the field. This sounds like a classic cracked heat exchanger senario. With the flame roll-out as severe as you have described it must be more then just a crack. The clue was the flame was ok until the blower came on.
jasong72
12-16-08, 07:13 PM
Thank you for the help, i guess by the do not use, thats not something i should try to fix on my own?

mbk3
12-16-08, 07:31 PM
Pretty much not a DIY project. You didn't mention how old the furnace is, the heat exchanger might be under warranty.