Magic Chef Exhaust / Vent Fan Failure

Over-the-range Magic Chef microwave vent fan does not run or runs only on one speed.

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

Failed vent fan motor, Faulty fan speed switch or relay, Obstructed fan blades, Loose wiring to vent fan

How to Fix / Troubleshooting

Safety: Unplug the microwave or switch off the circuit breaker before servicing the vent fan.

Basic checks:

Verify that the fan is not set to automatic mode that only runs with certain conditions.
Try all fan speed settings and note which do not work.

Internal inspection:

Remove the top grille and access the vent fan assembly.
Inspect the fan blades for grease buildup or obstructions; clean thoroughly.
Test the fan motor for continuity; an open winding indicates a failed motor.
Check wiring and connectors to the fan motor and control board.

Corrective actions:

Replace a failed vent fan motor with a Magic Chef-compatible motor.
If only certain speeds fail, the control board or fan speed switch/relay may be defective and require replacement.

Repair Difficulty

Medium 3/5

Required Part

Vent Fan Motor

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