E21
Monogram
Convection Fan Feedback or Motor Error
Microwave displays E21 and may not start convection or combination cooking modes.
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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.
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Possible Causes
Failed convection fan motor, blocked convection fan, open convection fan thermal cutout, wiring issue to convection fan
How to Fix / Troubleshooting
Safety: Disconnect power. Convection components can be hot; allow the unit to cool.
- Check for airflow: During convection preheat, you should feel warm air circulating. If not, the convection fan may not be running.
- Inspect fan: Access the rear or side panel (per Monogram service instructions) to view the convection fan assembly. Look for obstructions or heavy grease buildup.
- Spin test: With power off, spin the fan blade by hand. If stiff or seized, replace the fan motor.
- Continuity test: Check the convection fan motor and its thermal cutout for continuity. Replace any open components.
- Replace fan motor: Install the correct Monogram convection fan motor if defective.
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Repair Difficulty
Hard
4/5
Required Part
Convection Fan Motor
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