F18
New World Internal Temperature / Heat Sink Overheat Fault

Oven shows F18 and may shut down unexpectedly during use.

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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

Blocked cooling vents, failed cooling fan, control PCB overheating, oven installed too tightly without ventilation

How to Fix / Troubleshooting

Safety first: Turn off power and allow the oven and surrounding cabinetry to cool.

  • Check installation clearances: Compare the oven's installation with the New World manual. Ensure there is adequate space for air circulation around the cabinet.
  • Clean vents: Remove dust and grease from ventilation slots at the front, rear, and top of the oven.
  • Verify cooling fan: With power restored, run the oven and confirm the cooling fan operates. If not, test and replace the fan motor as needed.
  • Control board location: If the PCB is mounted near a heat source and shows signs of heat damage, consider relocating insulation or replacing the board.
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Repair Difficulty

Medium 3/5

Required Part

Cooling Fan Motor
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