Microwave cavity paint is peeling or rust is visible inside the oven.

Safety: Unplug the microwave before working inside the cavity.

Steps to address peeling paint/rust:

• 1. Clean and dry: Thoroughly clean the cavity and dry it.
• 2. Remove loose paint: Gently sand away loose or flaking paint with fine sandpaper, avoiding deep scratches.
• 3. Treat rust: Lightly sand rusted areas until smooth. Wipe away dust.
• 4. Apply microwave-safe paint: Use only microwave cavity touch-up paint rated for microwave use. Apply thin coats and allow to cure per instructions before using the microwave.
• 5. Severe damage: If rust has penetrated deeply or large areas are affected, consult a technician; cavity replacement is often not economical, and replacement of the unit may be recommended.