Microwave interior accumulates condensation or water droplets on walls and door after cooking.

Safety first: Condensation itself is not dangerous, but always unplug before cleaning.

Step-by-step checks:

• 1. Wipe dry: After cooking, wipe down the interior and door with a dry cloth.
• 2. Check vents: Ensure external vents are not blocked by cabinets or objects.
• 3. Verify fan operation: Confirm that the internal fan runs during cooking; if not, the fan motor may be faulty.
• 4. Inspect door seal: Check the door gasket for gaps or damage that could affect airflow.