Sub-Zero Uneven Heat Distribution

Oven cooks unevenly; one side of food is more done than the other.

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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

Convection fan not operating or weak, Blocked airflow around fan cover, Warped oven racks or misplacement, Temperature sensor not centered or reading incorrectly

How to Fix / Troubleshooting

Safety: Turn off power before removing interior panels.

  • Use convection mode: For more even cooking, use convection bake/roast if available and verify that the convection fan runs.
  • Inspect fan cover: Remove the rear interior panel and check for grease or debris blocking the convection fan intake or exhaust slots.
  • Check fan operation: Ensure the convection fan spins freely and runs during convection modes. Replace the motor if not operating correctly.
  • Rack placement: Use the rack positions recommended in the Sub-Zero manual and avoid overcrowding the oven, which can block airflow.
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Repair Difficulty

Medium 3/5

Required Part

Convection Fan Motor
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