Masterbuilt Intermittent Flame-Out

Grill frequently flames out during long low-and-slow cooks

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Possible Causes

Long P-setting pauses, Wind or cold ambient temperature, Inconsistent pellet feed due to fines, Fire pot too full of ash over time

How to Fix / Troubleshooting

Safety first: Always verify there is no unburned fuel overload before relighting.

  • 1. Adjust settings:
    • Use a moderate P-setting (P3–P4) instead of the longest pause settings.
    • Avoid extremely low setpoints in very cold or windy weather.
  • 2. Clean regularly:
    • Vacuum the fire pot and barrel before any long cook.
    • Check and clean ash every 4–6 hours on very long smokes.
  • 3. Improve pellet feed:
    • Sift pellets to remove fines or use higher-quality pellets.
    • Keep hopper at least 1/3 full to maintain consistent feed.
  • 4. Shield from wind:
    • Use a windbreak or grill blanket to reduce flame disturbance.
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Repair Difficulty

Easy 2/5
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