Sage Cavity Coating Degradation

Microwave cavity shows rust spots or peeling paint, especially on the floor or near the door edges.

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Safety Warning

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.

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Possible Causes

Chipped enamel from impacts, prolonged moisture exposure, corrosion under damaged paint, use of abrasive cleaners

How to Fix / Troubleshooting

Safety: Unplug the microwave before cleaning or inspecting rusted areas.

Steps to manage cavity rust:

  • 1. Clean and dry: Remove loose rust and debris with a damp cloth. Dry the area thoroughly.
  • 2. Avoid further damage: Do not use metal scouring pads or harsh abrasives on the cavity.
  • 3. Monitor severity: Small surface rust spots can sometimes be stabilized with microwave-safe cavity touch-up paint (applied by a technician).

If rust is extensive, flaking, or has perforated the metal, the microwave cavity may be compromised and the appliance should be replaced for safety.

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Repair Difficulty

Medium 3/5

Required Part

Cavity Enamel (Non-serviceable as a whole)
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