I have a 5 year-old Monessen Natural Blaze NB24N8C natural gas vent free setup. It ignites and runs for about 5 minutes, shuts off, then tries to relight itself before shutting down completely. I see a green light blinking every 2 seconds on the command center. This error code indicates a pilot lockout, I believe. I thoroughly cleaned the flame sensor, but that did not help. It ignites fine, but will not run very long before shutting down. It's operated perfectly the last 5 winters and has not been adjusted/damaged. What part is most likely needed to fix this? Thanks.
Monessen error code
- Thread starter Jerry5k
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Closely examine the pilot nozzle. There is a small hole, usually on the back side, maybe 3/32"
in diameter. That is the Oxygen Depletion Sensor (ODS).
If that gets blocked with dust or pet dander, it will give you trouble,
similar to what you are experiencing. Blow it out with compressed air.
Let us know how it works out.
in diameter. That is the Oxygen Depletion Sensor (ODS).
If that gets blocked with dust or pet dander, it will give you trouble,
similar to what you are experiencing. Blow it out with compressed air.
Let us know how it works out.
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