Samsung Dishwasher dC3 Error Code

Samsung Dishwasher dC3 Error Code – Auto Door Open Error Explained

The Samsung dishwasher dC3 error code indicates a problem with the auto door open mechanism, a feature that helps speed up drying at the end of a cycle. If your dishwasher door isn’t opening automatically, here’s what it means and how to fix it.

Samsung dishwasher dC3 error code

What Causes the dC3 Error Code?

  • Faulty auto-release mechanism (wax motor issue)
  • Damaged or loose wiring harness connecting the mechanism to the control board
  • Malfunctioning main PCB (control board)
  • Auto-release feature disabled in the dishwasher settings

How to Fix Samsung Dishwasher dC3 Error

  1. Check the Auto-Release Setting
    • Make sure the feature is enabled. On most models, press and hold Delay Start + Sanitize simultaneously, then press Sanitize again to toggle the setting.
  2. Inspect Wiring and Connections
    • Turn off power and check the wiring harness between the mechanism and the main PCB. Look for loose connections or visible damage.
  3. Advanced Electrical Checks (for Technicians)
    • Test the wax motor resistance and harness continuity with a multimeter.
    • Confirm the main PCB is sending the correct voltage (~120V AC).
    • Replace the wax motor, harness, or PCB if faulty.

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