C-72
Samsung Oven Door Lock Motor / Switch Error (Self-Clean Lock)

Oven displays C-72 and may stop heating or lock out certain functions.

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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

Failed door lock motor, Misaligned or stuck door latch, Faulty door lock position switch, Damaged wiring to lock assembly

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker. Ensure the oven is cool before working near the door lock.

  • Check door movement:
    • Verify the door closes fully and evenly.
    • Inspect the latch hook for bending or obstruction.
  • Try a power reset: Restore power and attempt to start a normal bake (not self‑clean) to see if the lock cycles and the error clears.
  • Inspect lock assembly (advanced DIY):
    • Remove the top or rear panel to access the door lock motor assembly.
    • Check for broken plastic linkages or jammed mechanisms.
    • Verify wiring connectors are secure.
  • Manual unlock (if door stuck locked):
    • With power off, locate the manual release tab or lever near the lock assembly (varies by model) and gently move it to unlock the door.
  • Replace faulty parts:
    • If the motor does not run when commanded, or the switch does not change state, replace the door lock assembly.
    • If the lock is good but the oven still reports an error, the main PCB may be at fault.
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Repair Difficulty

Hard 4/5

Required Part

Door Lock Assembly
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