My gas furnish will start then shut off. The blower for the exhale will start, then the heat element will glow to start the burners, then the burner blower will start but after a few seconds it will shut off. What do you think? I’m hoping it is just the thermostat. I haven’t had the change to jump the wires but I’ll do it tonight. What could it be if it’s still not working when I jump the wire from the thermostat?
Steven

Clean your flame sensor. Use sand paper or steel wool. It is located near the pilot. EASY does it because you can break the ceramic base.