Microwave emits a burning smell or visible smoke from the interior during or after use.

Immediate safety: Press STOP/CLEAR, open the door, and unplug the microwave. Do not continue to operate until the cause is identified.

Interior inspection:

• Look for charred food, grease buildup, or burn marks on the waveguide cover (usually a small mica or plastic panel on the side wall).
• Remove any metal objects or foil from the cavity; never operate with metal unless specifically allowed by the manual.
• Clean the interior thoroughly with a mild detergent and water, then dry completely.

Waveguide cover:

• If the cover is burned, cracked, or has holes, it must be replaced with a Commercial Chef-compatible waveguide cover before further use.

If smoke or burning smell continues after cleaning and cover replacement, discontinue use and have the unit inspected professionally.