I have a 2.5 year old York furnace. Serial number TG9S060B12MP11A. I turn the termostat up and it starts up... it then tries to light and the amber light flashes at least 20 times. (4 times means "calling for heat"). It tries to light but sputters and spits.. then the blower kicks in an all flame is out. The light then flashes 8 times red which corresponds to Ignition Recycle Lockout. Can anyone tell me what that means and is is something that i can fix myself?

Thanks

Frank

 

You don't want the main burner gas on unless the furnace burners are lit ----right?


So the circuit board checks to see if the main burners are lit while the gas is turned on.

The eight flash code indicates that the circuit board is repeatedly detecting that the main burner is and isn't lit --- at least five times while the thermostat is calling for heat.

That seems to correspond to your observation that the main burners aren't staying lit reliably.

A likely cause of this problem could be that the flame sensor is coated with invisible oxides, and thus the flames can't touch the flame sensor RELIABLY to keep the main burners lit.

The flame sensor is a small rod located on the opposite side of the furnace burners from the hot surface ignitor. It sticks up into the flame area and should be engulfed by flames when the burners are lit. It has a single wire coming out the bottom that goes back to the circuit board.

Often the flame sensor can be taken out with just a screwdriver or nut driver. Use fine sandpaper or a wire brush to clean off the oxides and reinstall.

 

Thanks for the reply, turns out the exhaust tube was slightly out and as a saftey precaution (no carbon monoxide in the house) the burner does not light. Problem solved!