Oster Door gasket / RF seal degradation

Microwave door seal appears damaged or there is visible gap when the door is closed.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Worn or deformed door gasket, Bent door frame, Impact damage to door, Loose hinges

Safety first: Do not operate a microwave with a compromised door seal due to potential radiation leakage.

Inspect gasket: Look for cracks, tears, or flattened areas in the door seal.
Check door alignment: Ensure the door closes evenly all around. Tighten hinge screws if accessible.
Replace door or gasket: If the seal is damaged, replace the door assembly or gasket with an Oster-approved part. This is often a technician-level repair to ensure proper sealing.

Hard 4/5

Door Gasket / Door Assembly

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