Sage
Cooling Fan or Convection Fan Bearing Wear
Microwave produces a high-pitched squeal or whine from the fan area during operation.
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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
Dry or worn fan motor bearings, debris contacting fan blades, misaligned fan shroud
How to Fix / Troubleshooting
Safety: Unplug the microwave before inspecting vents or internal fans.
User-level checks:
- 1. Clean vents: Remove dust and debris from intake and exhaust vents with a soft brush and vacuum.
- 2. Listen for location: Determine whether the noise comes from the rear, side, or top to help identify the fan.
Technician-level actions:
- 3. Inspect fan blades: With the cover removed, check for debris or bent blades contacting the housing.
- 4. Replace fan motor: If bearings are noisy or seized, replace the cooling or convection fan motor with a Sage-compatible part.
Persistent squealing indicates the fan motor should be replaced to prevent overheating.
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Repair Difficulty
Medium
3/5
Required Part
Cooling / Convection Fan Motor
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