Microwave shows E15 and stops; sometimes associated with a burning smell previously.

Safety: Unplug the microwave and allow it to cool completely. Do not attempt to operate a microwave that has overheated or emitted a burning smell.

User checks:

• 1. Inspect cavity: Look for signs of burning, melted plastic, or arcing marks on the cavity walls, waveguide cover, or turntable support.
• 2. Ventilation: Ensure proper clearance around the unit and that vents are not blocked.

Advanced checks:

• Remove the cabinet and locate the cavity thermal fuse or thermal cut-out on the top or side of the cavity.
• Test the fuse for continuity with a multimeter. An open fuse indicates it has blown and must be replaced.

Repair: Replace the thermal fuse only with the exact Sharp-rated part. Investigate and correct the root cause (blocked vents, failed fan, misuse) before returning the unit to service. If there is extensive heat damage, have the unit inspected by a technician.