go here...

http://www.arnoldservice.com/furnace_flame_sensors.htm

look at the flame sensors...then shut off power to your furnace....take
all the doors of..this should kill power but it would be best to shut
the circuit breaker off.......

find what looks like the flame sensor by comparing to the pictures at
the above website I and another user posted.

clean with steel wool or sand paper.....

really should get a professional out there to look at that.

also...and no offense to you Tammy....but I just wonder if Tammy isnt a
man using a womans name to get sympathy and more answers.....

~: