Microwave displays E07 and stops; turntable may not rotate; fan may stop unexpectedly.
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 Warning: Unplug the microwave before any inspection. Internal fan access requires cabinet removal and exposure to high-voltage components.
User-level checks:
- Ensure that rear and top vents are not blocked.
- Listen when starting a cook cycle: if you do not hear the usual fan noise, the cooling fan may not be running.
Technician-level steps:
- Remove the outer cover and discharge the high-voltage capacitor.
- Locate the cooling fan motor (usually near the magnetron and vents).
- Check for obstructions (insulation, wiring, debris) preventing the fan from turning; clear any blockage.
- Spin the fan blades by hand; if stiff or seized, replace the cooling fan motor assembly.
- Verify voltage at the fan motor terminals during operation; if no voltage is present and wiring is intact, suspect the control board fan driver.
Because the fan cools high-voltage components, do not operate the microwave if the fan is not working.
Repair Difficulty
Required Part
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