Masterbuilt
Pellet Moisture Contamination
Pellets in hopper swell, crumble, or form clumps
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Possible Causes
High humidity or rain entering hopper, Hopper lid gasket leak, Long-term storage of pellets in hopper, Poor-quality pellets
How to Fix / Troubleshooting
Safety first: Do not attempt to burn wet pellets; they can cause jams and poor combustion.
- 1. Remove contaminated pellets:
- Scoop out all pellets from the hopper.
- Vacuum remaining dust and fines.
- 2. Inspect hopper lid:
- Check lid gasket for damage or gaps.
- Replace the hopper lid gasket if worn.
- 3. Use dry storage:
- Store pellets in sealed containers indoors.
- Only load enough pellets for the current cook.
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Repair Difficulty
Very Easy
1/5
Required Part
Hopper Lid Gasket
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