Microwave emits a burning smell or smoke from vents during or after cooking.

Safety: Immediately stop the microwave, unplug it, and open windows. Do not continue using the unit until the cause is identified.

Steps:

• 1. Inspect interior: Look for burnt food, grease, or packaging. Clean the cavity thoroughly.
• 2. Check for external burning: Smell near the rear and sides (with unit unplugged). If the odor is electrical (sharp, chemical), internal components may be overheating.
• 3. Inspect vents and fan: With the cabinet removed (if competent), check for dust buildup on the fan and vents. Clean carefully.
• 4. Professional diagnosis: If the smell persists or you see smoke from inside the cabinet, a technician should inspect the magnetron, transformer, wiring, and control board for overheating or damage.