Microwave emits a crackling or popping sound and visible sparks inside the cavity during cooking.

Immediate action: Press STOP and unplug the microwave as soon as arcing is observed.

Interior inspection:

• Remove all items from the cavity and inspect the walls, ceiling, and turntable support.
• Check the waveguide cover (usually a rectangular mica plate on the side wall) for burns, holes, or heavy grease.
• Clean the cavity thoroughly with a mild detergent and soft cloth; remove all carbonized food deposits.
• Never use metal containers, foil, or utensils unless explicitly allowed by Teka for specific modes.

Component replacement:

• If the waveguide cover is burnt or damaged, replace it with a Teka-compatible mica waveguide cover before using the microwave again.
• If cavity enamel is chipped exposing bare metal, consult a technician; special cavity paint or panel replacement may be required.