E8
Hisense
Cooling Fan Motor or Airflow Fault
Microwave shows E8 and may shut down unexpectedly during cooking.
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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 internal cooling fan motor,Obstructed air ducts or grease filters,Loose fan wiring harness,Defective fan relay on main control PCB
How to Fix / Troubleshooting
Safety first: Unplug the microwave before any cleaning or inspection.
User-level checks:
- Inspect vents and filters: For over-the-range Hisense microwaves, remove the front grille and check the grease filters. Clean or replace clogged filters according to the user manual.
- Check for obstructions: Ensure nothing is blocking the top or rear exhaust vents. Remove any items stored on top of the microwave that may restrict airflow.
- Listen for fan operation: During a cook cycle, you should hear the internal cooling fan. If the microwave is very quiet and E8 appears, the fan may not be running.
Technician-level repair:
- Access and test the cooling fan motor for proper voltage and rotation.
- Inspect the fan blades for damage or obstructions.
- Test the fan relay and control board outputs; replace the fan motor or main control PCB as needed.
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Repair Difficulty
Hard
4/5
Required Part
Cooling Fan Motor
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