Panasonic Door Switch Stuck Open / Light Circuit Fault

The interior light stays on when the door is closed, and the compartment gets warm near the light.

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Possible Causes

Faulty door switch, Misaligned door not pressing the switch, Stuck relay on the control PCB, Incorrectly installed LED module

How to Fix / Troubleshooting

Safety: Unplug the refrigerator before working on electrical components.

  • Step 1 – Check light behavior: Press the door switch manually. The light should turn off. If it stays on, the switch or control is faulty.
  • Step 2 – Replace door switch: Remove and test the switch with a multimeter. Replace if it does not open/close properly.
  • Step 3 – Control board check: If the switch is good but the light remains on, the control PCB may have a stuck transistor or relay. This typically requires PCB replacement.
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Repair Difficulty

Easy 2/5

Required Part

Refrigerator Door Switch
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