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9C1

Abnormal or excessive supply voltage

The dishwasher has detected an abnormal mains-voltage condition and entered protection mode.

What this code means

The dishwasher has detected an abnormal mains-voltage condition and entered protection mode.

Possible causes

  • Power surge or flicker
  • Incorrect or unstable supply
  • Poor outlet or circuit connection
  • Use of unsuitable extension lead

Common symptoms

  • 9C1, UC or 9E1 displayed
  • Dishwasher powers on but may refuse to wash

Checks to make

  1. Power-cycle at the wall or breaker
  2. Use a proper dedicated outlet/circuit
  3. Check the household electrical supply if the code returns

Safety

  • Disconnect electrical power before accessing filters, the sump or internal parts. Turn off the water supply if leakage or overflow is suspected.

Model notes

Samsung notes that code availability and exact behaviour vary by model.