Error Code OC
Too much water detected inside the dishwasher
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: OC
What This Means
Case brake fails to detect flow pulses properly; Water valve is defective (not closing); Overflow sensor is contaminated or defective
What actually causes this:
The water inlet valve isn't closing properly, allowing water to slowly overflow
First Thing to Check
Turn off the dishwasher and the water supply valve under the sink, then check for standing water
Parts Involved
How to Fix
- 1
1. Check and reconnect overflow sensor connector
- 2
2. Check if water valve is closing properly — see 4C water supply diagnostics
- 3
3. Check for water leakage on the case brake assembly
- 4
4. Clean overflow sensor if contaminated
- 5
5. If overflow sensor and valve test normal, replace Main PBA
This Error Applies To
Samsung DW80R9950U Series Dishwashers (2023) (2023–present)
Related Error Codes
The dishwasher isn't getting enough water
Water is getting into the dishwasher when it shouldn't be
The main control board and the motor control board can't communicate
The dishwasher can't drain the dirty water out
The dishwasher tried multiple times to drain but keeps failing
The water distribution motor that directs spray isn't working properly
The water temperature sensor isn't reading correctly
The heating element isn't warming the water