Samsung Dishwasher OC Error Code: What It Means & What to Check
Q: What does the Samsung dishwasher OC error code mean?
A: The Samsung dishwasher OC code usually means an over-level water condition. In plain language, the dishwasher thinks there is too much water in the tub, or water is not leaving the machine the way it should.
Quick Q&A
If your Samsung dishwasher shows OC, cancel the cycle, let it drain, clean the filter, and check the drain hose and sink drain before testing it again.
What This Code Usually Means
OC is commonly grouped with 0C and related overfill or over-level water issues. The machine may have standing water from a drain restriction, a sensing problem, or an inlet valve that is not shutting off correctly.
What You May Notice
- Standing water in the bottom of the tub
- The pump running longer than normal
- The cycle stopping mid-way
- Water smell or musty odor
- The code returning after restart
Safety First
If water is visible around the dishwasher, stop testing cycles and clean up the area before continuing.
Quick Checks You Can Try
- Cancel the cycle and let the unit drain.
- Clean the filter thoroughly.
- Check the drain hose for kinks or blockages.
- Make sure the sink drain or disposal is clear.
- Restart the dishwasher and watch for repeat symptoms.
Most Common Causes
- Blocked filter
- Restricted drain hose
- Slow sink drain or disposal blockage
- Water level sensing problem
- Inlet valve not closing properly
What Beacon Usually Checks
Our friendly technicians in yellow usually verify the drain path first on an OC code, then check whether the water level sensor and inlet valve are behaving the way they should.
When to Call Beacon
If the dishwasher keeps showing OC after cleaning the filter and confirming the drain path is clear, it is time for service.
Request service from Beacon or call (352) 726-7530.
Prevent This Next Time
- Clean the filter on a regular schedule
- Keep the sink drain clear
- Avoid crushing the drain hose under the sink
- Address repeat drainage problems early
Content Update & Editorial Review
This article was reviewed and updated on March 7, 2026 by Chris for accuracy, clarity, and homeowner safety.
Frequently Asked Questions
Is OC the same as 0C on a Samsung dishwasher?
Often, yes. Many Samsung references group them together as over-level water errors.
Can a clogged filter cause OC?
Yes. Restricted draining is one of the most common reasons this code appears.
Can a bad sink drain trigger OC?
Yes. A slow or blocked sink drain can keep the dishwasher from draining normally.
Will unplugging the dishwasher fix OC?
A reset may clear the display briefly, but it will not correct a real drain, valve, or sensing problem.
Should I keep running cycles to test it?
No. If the machine may be holding too much water, repeated test cycles can make the problem worse.
When should I call Beacon for OC?
Call when the code returns after cleaning the filter and checking the drain path.
Beacon Services & Appliances
(352) 726-7530 • www.BeaconSaves.com