Masterbuilt Door Seal Leakage

Grease or smoke leaking from door edges instead of exhaust

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Possible Causes

Worn or missing lid gasket, Warped lid, Excessive grease buildup preventing full closure, Misaligned hinges

How to Fix / Troubleshooting

Safety first: Allow the grill to cool before adjusting the lid or cleaning grease.

  • 1. Inspect gasket:
    • Check the lid gasket for cracks, flat spots, or missing sections.
    • Replace the lid gasket if damaged.
  • 2. Clean sealing surfaces:
    • Remove grease buildup from the lid and body mating surfaces.
  • 3. Check lid alignment:
    • Verify the lid closes evenly on both sides.
    • Tighten or adjust hinge bolts to improve alignment.
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Repair Difficulty

Easy 2/5

Required Part

Lid Gasket
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