Sub-Zero Oven Light Circuit Failure

Oven light does not work even after replacing the bulb.

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Possible Causes

Failed light socket, Broken light lens or housing, Open wiring to light assembly, Faulty light relay on control board

How to Fix / Troubleshooting

Safety: Turn off power before working on the light assembly.

  • Confirm correct bulb: Use only the bulb type and wattage specified by Sub-Zero. Incorrect bulbs can fail immediately or damage the socket.
  • Inspect socket: Remove the bulb and examine the socket contacts for burning or corrosion. If damaged, replace the socket assembly.
  • Check continuity: With power off, test continuity through the socket and wiring back to the control board.
  • Control board: If the socket and wiring are good but the light never energizes, the light relay on the control board may be defective and the board should be replaced.
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Repair Difficulty

Easy 2/5

Required Part

Oven Light Socket Assembly
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