Russell Hobbs Cooling Fan Overrun or Stuck Relay

Microwave fan continues to run for a long time after cooking has finished

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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

Normal cooling overrun behavior,Stuck fan relay on control PCB,Overheating detected by thermostat

How to Fix / Troubleshooting

Note: Some Russell Hobbs models keep the fan running after cooking to cool internal components; this can be normal.

  • 1. Observe duration: If the fan stops within a few minutes, it is likely normal operation.
  • 2. Check for overheating: Ensure vents are clear and the unit is not built into a confined space. Overheating can cause extended fan operation.
  • 3. If fan never stops: Unplug the microwave for 10 minutes, then reconnect. If the fan starts immediately and runs continuously, the fan relay or control PCB may be stuck.
  • 4. Professional repair: A technician can test and replace the control PCB or fan relay as needed.
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Repair Difficulty

Medium 3/5

Required Part

Main Control PCB
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