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 the pulse (flow meter issue); Water valve is out of order (not closing properly); Water inlet valve leaking through when it should be off; Drain pump or hose allowing water to backflow
What actually causes this:
The water inlet valve isn't closing properly, allowing water to slowly leak in between cycles
First Thing to Check
Turn off the dishwasher and the water supply valve under the sink, then check for standing water in the tub
Parts Involved
How to Fix
- 1
1. Check and reconnect overflow sensor connector
- 2
2. Check if inlet valve operates normally — see 4C water supply error diagnostics
- 3
3. Check if small amounts of water are supplied when inlet valve should be off — if so, clean or replace valve
- 4
4. Check for water leakage on top of the case sensor — clean hose-sensor and case sensor
- 5
5. If no obvious cause found, replace Main PBA
Other Error Codes for DW80M9990UM
The dishwasher's main computer and the display board can't talk to each other
The motor controller board inside the dishwasher stopped responding
Water is leaking inside the base of the dishwasher
The water distribution motor that directs spray isn't working properly
The main wash pump that sprays water isn't working properly
The dishwasher door isn't fully closed
The automatic door-opening feature isn't working
The dishwasher isn't getting enough water to run