Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

**Carl n Susan** · 08-23-2017, 02:41 PM

Here are the codes:

1 Internal Circuit Board Failure Steady on, no flashing
2. Limit switch/Airflow problems 1 flash with 3-second pause
3. Flame Sense Fault 2 flashes with 3-second pause
4. Ignition Lockout Fault 3 flashes with 3-second pause

If there is no sign of blockage in the burner tube (mud daubers, etc.) then it might be time to do some diagnosis work. Here is a link to an Atwood Furnace Service Manual to guide you on the steps

08-23-2017, 02:41 PM	#7
Carl n Susan Site Team Join Date: Oct 2005 Location: Carmichael - CA Posts: 7,370 M.O.C. #4831	Here are the codes: 1 Internal Circuit Board Failure Steady on, no flashing 2. Limit switch/Airflow problems 1 flash with 3-second pause 3. Flame Sense Fault 2 flashes with 3-second pause 4. Ignition Lockout Fault 3 flashes with 3-second pause If there is no sign of blockage in the burner tube (mud daubers, etc.) then it might be time to do some diagnosis work. Here is a link to an Atwood Furnace Service Manual to guide you on the steps __________________ Carl (n Susan) There is more to life than fuel mileage. 2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB