OC Serious Moderate DIY
Samsung Dishwasher OC / oC — Overfill
Samsung Dishwasher · Error code OC
What OC Means
OC means too much water is in the tub — the dishwasher overfilled and drains to protect against a leak.
Most Likely Fix
Overflow / too much water
PartWater inlet valve
Typical cost$25-55
Difficultymoderate
Time75 min
Tools: screwdriver, pliers, towels
Diagnose first: Inlet valve stuck open is the usual cause. Verify float in tub moves freely first.
Find this part on Amazon →If the primary fix doesn't resolve it:
PartFloat switch assembly
Typical cost$15-35
Symptoms
- Dishwasher drains repeatedly
- Too much water in the tub
- OC on the display
Common Causes
1
Inlet valve stuck open
A valve that keeps adding water. Most common.
2
Faulty level sensor / float
A bad sensor lets it overfill.
How to Fix It
- Turn off the under-sink water supply.
- Test the inlet valve; replace if it will not close.
- Check the float and level sensor.
Parts You May Need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
More Samsung Dishwasher Codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.