I have a Frigidaire furnace model no# FG6RK072C-12A that is about 3 years old and it fires up initially and then immediately cuts out. I did clean off the flame sensor but it did not help. Any suggestions as to what it could be... thanks for any help JCC0223

Although I no the labor isn`t included,, but I`m sure the parts if need are still under warranty, does it give a code,flashing light on the circuit board?

Hello wmproop,

Thank you for your time and reply.. Yes, I get the continuous yellow and red lights on circuit board.
jcc0223