Microwave emits a strong burning or electrical smell during or after use.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety: If the smell is strong or accompanied by smoke, stop the microwave immediately, unplug it, and keep the door closed to smother any flames.
- Inspect interior: Once cooled, open the door and check for burnt food, splatter, or melted containers. Clean the cavity thoroughly with mild detergent.
- Check accessories: Ensure only Bosch-approved racks and accessories are used in combination models. Remove any warped or melted plastic items.
- Test with water: After cleaning and airing out, run the microwave with a cup of water for 1–2 minutes. If the burning electrical smell returns with no food inside, stop using the unit.
Persistent electrical smell: Indicates overheating of internal components (magnetron, wiring, transformer). Have the microwave inspected by a Bosch technician before further use.