Bush Inadequate Ventilation / Cooling System Issue

Microwave exterior or control panel becomes very hot to touch during 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

Blocked ventilation grills, Failed cooling fan, Excessive grease buildup restricting airflow, Installation in confined cabinet without proper clearances

How to Fix / Troubleshooting

Safety: Unplug and allow the microwave to cool before inspection.

Check clearances: Ensure the microwave has the minimum side, top, and rear clearances specified in the Bush manual. Do not enclose a freestanding microwave in a tight cabinet.
Clean vents: Vacuum or brush dust and grease from intake and exhaust vents.
Verify fan operation: During a short test run, confirm that air is blowing from the exhaust vent. If not, the cooling fan may have failed and should be replaced.

Repair Difficulty

Medium 3/5

Required Part

Cooling Fan Motor

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