About this guide
- Written by ApplianceWorth Editorial Team
- Technical contact Victor — appliance technician
- Record updated 2026-07-01
- Applies to Samsung washers
- Confidence medium
- Also displayed as OC, OF
- Sources Manufacturer service documentation and field-repair experience · Methodology · Report a correction
The record-update date is a database timestamp, not proof of a fresh model-specific technical review. Check the applicability below and your manufacturer’s instructions before acting on a guide.
What this code means
The control detected a water level at or above its overflow threshold and may drain automatically to protect the home.
Most likely causes
- An inlet valve is stuck mechanically open
- The pressure hose or water-level sensor is blocked, leaking or disconnected
- Excess suds are interfering with pressure sensing
- The main control is energizing a valve incorrectly
Safe checks for the owner
- Turn off both household water valves if water continues entering with the washer stopped or unplugged.
- Use drain/spin only after the uncontrolled filling has stopped and there is no active leak.
- Do not leave the washer unattended until the source has been diagnosed.
Estimated U.S. repair cost
$210–$440, depending on model, access, parts availability and local labor.