Samsung Cooling Fan Stuck On

Oven fan runs continuously even when the oven is off and cool.

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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

Stuck fan relay on PCB, Faulty temperature sensor reporting high temp, Shorted fan control circuit, Firmware glitch

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker.

  • Power reset:
    • Leave power off for 10 minutes, then restore and observe fan behavior.
  • Check sensor:
    • Test the oven temperature sensor; replace if out of spec.
  • Inspect PCB:
    • Look for a stuck or burnt fan relay on the main board.
  • Replace PCB: If the relay is stuck closed, replace the main relay control board.
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Repair Difficulty

Hard 4/5

Required Part

Main Relay Control Board
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