F7
Galanz Ventilation Fan / Sensor Error (OTR Models)

Microwave displays F7 and may shut down unexpectedly; sometimes associated with over-the-range vent fan.

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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 range hood fan motor, Faulty fan speed sensor, Blocked vent duct, Control board fan driver failure

How to Fix / Troubleshooting

Safety: Unplug the microwave and, if over-the-range, ensure it is securely supported before working on it.

Steps:

  • 1. Check vent filters and duct: Remove and clean grease filters. Inspect the external vent hood for blockages.
  • 2. Test hood fan: Try all fan speeds. If the fan does not run or runs only on some speeds, the motor or control may be faulty.
  • 3. Access fan motor: Remove the top grille and access the hood fan assembly. Test the motor for continuity and replace if defective.
  • 4. Control board: If the motor is good but not receiving power, the control board fan circuit may need replacement.
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Repair Difficulty

Hard 4/5

Required Part

Range Hood Fan Motor
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