OC
Samsung Over-Level Water Error

Dishwasher displays OC and may stop with water near the bottom of the door.

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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

Foaming from wrong detergent, Blocked pressure sensor, Stuck water inlet valve, Faulty water level sensor

How to Fix / Troubleshooting

Safety: Turn off power and water supply if water is actively rising.

  • Check for suds: Open the door. If you see excessive foam, you may have used regular dish soap or too much detergent. Let the foam dissipate, then run a rinse-only cycle with no detergent.
  • Clean filter and sump: Remove and clean the filter to ensure proper drainage and level sensing.
  • Inspect pressure sensor hose: Access the side panel and verify the small hose to the level sensor is clear and properly attached.
  • Replace inlet valve if leaking: If water seeps in even when off, replace the water inlet valve.
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Repair Difficulty

Medium 3/5

Required Part

Water Level Sensor / Pressure Switch
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