Tristar Lid Seal Failure / Gasket Compression Loss

Steam or water leaking from around the lid rim during pressure cooking.

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Possible Causes

Aged or flattened silicone gasket, Food debris on lid rim, Lid not fully locked, Warped inner pot causing uneven lid pressure

How to Fix / Troubleshooting

Safety first: If you see heavy steam leaking from the rim, cancel the program and allow the cooker to depressurize naturally before opening.

  • Clean contact surfaces: After cooling, remove the gasket and clean the lid rim and cooker body rim thoroughly. Even small food particles can break the seal.
  • Inspect gasket condition: If the gasket feels hard, has visible cracks, or no longer sits snugly in its groove, replace it.
  • Check lid locking: Close the lid and ensure it rotates fully into the locked position. If it stops early, check for obstructions.
  • Inspect inner pot: A severely warped pot can prevent even pressure on the gasket. Replace the pot if the bottom is not flat.

Persistent rim leaks almost always require a new silicone gasket. Use only Tristar-compatible gaskets sized for your model.

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Repair Difficulty

Easy 2/5

Required Part

Silicone Lid Gasket
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