Microwave shows E11 and the exhaust fan on an over-the-range model does not operate correctly.
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 first: Unplug the microwave and, for over-the-range units, consider removing it from the wall with assistance before servicing.
Basic checks:
- 1. Test fan settings: Try all fan speeds. Note if the fan never runs, runs only on some speeds, or is noisy.
- 2. Check for obstructions: Remove the grease filters and inspect the blower area for foreign objects or heavy grease buildup.
Advanced steps:
- 3. Access fan motor: Remove the top grille and, if necessary, the unit from the wall to access the blower housing.
- 4. Inspect blower wheel: Ensure the wheel spins freely and is not rubbing against the housing. Clean thoroughly.
- 5. Test motor: Disconnect the motor and test for continuity. Replace if open or seized.
- 6. Check fan relay: On the control board, verify the fan relay operates and is not burnt.
After replacing the fan motor or control board, reassemble and test all fan speeds.
Repair Difficulty
Required Part
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