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Samsung Dishwasher Error Code OC

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 11, 2026
⚠ High Severity 🔧🔧 Moderate DIY Also shown as: oE

Over-level water error — too much water in the tub

The water level sensor detected more water than the program ever calls for. The dishwasher stops and runs its drain pump to bring the level down. A sticking inlet valve that doesn't close cleanly, or a misreading level sensor, are the usual causes.

💰 DIY cost: $0–$60 👨‍🔧 Pro cost: $150–$300 Save $150+ by doing it yourself
Samsung Dishwasher error code OC on the display panel
How the OC code appears on a Samsung dishwasher display

What Does Error Code OC Mean on a Samsung Dishwasher?

Over-level water error — too much water in the tub.

The water level sensor detected more water than the program ever calls for. The dishwasher stops and runs its drain pump to bring the level down. A sticking inlet valve that doesn't close cleanly, or a misreading level sensor, are the usual causes.

What Causes Error Code OC?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

  1. 1
    Inlet valve not closing fully (debris or worn solenoid) 45% of cases
  2. 2
    Water level / pressure sensor misreading 30% of cases
  3. 3
    Drain restriction leaving water from the previous cycle 25% of cases

How to Fix Samsung Dishwasher Error Code OC

🔧🔧 Moderate DIY Est. time: 30–60 min
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Confirm it drains

    Cancel the cycle and let it pump out. If water remains, fix drainage first (filter, air gap, disposer connection) — leftover water plus a normal fill reads as overfill.

  2. 2

    Watch the fill

    Start a cycle and watch whether water keeps trickling in after the fill should have stopped — that's a sticking inlet valve. Replace it.

    🔩 Samsung dishwasher inlet valve ($25–$60)
  3. 3

    Check the level sensor

    Inspect the sensor/air trap at the sump for gunk; a fouled air chamber misreports the level to the board.

    ⚠️ Switch off the breaker before removing the kick plate.

How to Reset Error Code OC

Switch the breaker off for 60 seconds. The unit drains excess water automatically on the next power-up; run a short cycle to confirm normal fill.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

Did this guide fix your appliance?

When to Call a Professional

If the valve and sensor both check out, water may be siphoning back in from the drain connection — a pro can verify the installation in one visit.

Average professional repair cost for this issue: $150–$300

Related Error Codes

4C
Water supply error — dishwasher not filling
⚠ Medium Severity
LC
Leak sensor activated — water detected at base of dishwasher
⚠ High Severity
5C
Drain failure — water not draining from dishwasher
⚠ High Severity

Find Replacement Parts

Use these links to find the exact replacement parts for your Samsung Dishwasher:

🔩
Search PartSelect
Samsung Dishwasher repair parts
🔧
Search RepairClinic
Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More Samsung Dishwasher Error Codes

3C Wash motor error — circulation pump failure HE Heater error — water not heating tE Temperature sensor failure — NTC thermistor fault 7E Water wall reflector error — water wall sensor blocked 1E Water inlet sensor failure bE2 Button error — control panel button shorted

Frequently Asked Questions

What does error code OC mean on a Samsung Dishwasher? +
Over-level water error — too much water in the tub
How do I fix error code OC on my Samsung Dishwasher? +
Start by Cancel the cycle and let it pump out. If water remains, fix drainage first (filter, air gap, disposer connection) — leftover water plus a normal fill reads as overfill.. If that doesn't resolve it, work through each step in the fix guide above.
How do I clear or reset error code OC? +
Switch the breaker off for 60 seconds. The unit drains excess water automatically on the next power-up; run a short cycle to confirm normal fill.
Is error code OC serious? +
This is a high-severity error. You should address it soon. Running the appliance may cause further damage.

Sources & References

Content verified against manufacturer service documentation. Last verified: June 11, 2026.

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