Logik Cavity Lamp Failure

Microwave interior light does not come on, but unit heats and operates normally.

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Possible Causes

Blown cavity lamp, Loose lamp holder connection, Failed lamp supply on control PCB

How to Fix / Troubleshooting

Safety: Unplug the microwave before replacing the lamp. Lamps may be near high-voltage areas.

Steps:

  • 1. Access lamp: On many Logik models, the lamp is accessible by removing the outer cover or a small service panel.
  • 2. Check bulb: Visually inspect the filament. If broken or darkened, replace with the correct Logik-specified lamp type and wattage.
  • 3. Check connections: Ensure the lamp holder terminals are tight and not corroded.

If a new lamp does not work, the lamp circuit on the control PCB may be faulty and require professional repair.

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Repair Difficulty

Easy 2/5

Required Part

Cavity Lamp
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