Samsung Dishwasher 0C Error Code: What It Means & What to Check
Q: What does the Samsung dishwasher 0C error code mean?
A: On many Samsung dishwashers, the 0C code points to an over-level water condition. In plain language, the dishwasher thinks there is more water in the tub than there should be. That can happen because of a drainage problem, a partial blockage, a hose issue, or a fill problem that leaves water where it should not be.
What This Code Usually Means
The 0C code is commonly tied to a water level problem. On some Samsung models, similar overfill or over-level issues may also show as OC or oE. That is why the exact meaning can vary a little by model number, but the general problem is the same: the dishwasher believes the water level is too high.
What You May Notice
- Standing water in the bottom of the tub
- The cycle stopping before completion
- The drain pump running longer than normal
- A dishwasher that seems to fill and then stop
- A musty odor if water has been sitting for a while
Safety First
If you see water near the dishwasher or under the cabinet, do not keep running more cycles to “test it.” Wipe up visible water around the unit and avoid pulling the dishwasher out yourself unless you know the power and water are safely shut off.
Quick Checks You Can Try
- Cancel the cycle and let the dishwasher drain. Then turn power off for a few minutes and restart it.
- Check the filter area. Remove debris from the bottom filter and sump opening if your model allows safe access.
- Look at the drain hose path. A kink, sag, or clog can leave water trapped in the machine.
- Run water in the kitchen sink. If the sink is draining slowly, the dishwasher may not be able to drain properly either.
- Check the garbage disposal connection. If the dishwasher was recently installed, an unremoved knockout plug can block draining.
Most Common Causes
- Clogged dishwasher filter
- Blocked drain hose
- Sink drain or disposal blockage
- Drain pump restriction
- Water level sensing issue
- Inlet valve that does not close properly
What Beacon Usually Checks
When our friendly technicians in yellow inspect a Samsung dishwasher showing 0C, we usually check the drain path first, then confirm whether the water level sensor is reading correctly, whether the drain pump is moving water well, and whether the inlet valve is shutting off the way it should.
When to Call Beacon
If the code comes back after you clean the filter and confirm the sink and hose are draining correctly, it is time for service. Repeated over-level codes can point to a failed sensor, a sticking valve, or a drain issue deeper in the machine.
Request service from Beacon or call (352) 726-7530. You can also read our related guide on why a dishwasher may not drain.
Prevent This Next Time
- Clean the filter regularly
- Do not let heavy food soil build up in the sump area
- Make sure the sink drain stays clear
- Check that the drain hose is not crushed when items are stored under the sink
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 Samsung dishwasher 0C the same as OC?
Often, yes. Many Samsung references group 0C and OC together as over-level or overflow-style water errors, but the exact display can vary by model.
Can a dirty filter cause a Samsung 0C code?
Yes. If water cannot move through the filter and drain system properly, the dishwasher may think the water level is too high.
Will unplugging the dishwasher fix the 0C code?
A reset may temporarily clear the display, but it will not fix the underlying cause if the drain path, valve, or sensing system still has a problem.
Can a clogged sink drain trigger this code?
Yes. If the dishwasher drains into a slow or blocked sink drain or garbage disposal, water can back up and lead to over-level errors.
Should I keep running cycles to see if it clears?
No. If water level errors keep returning, repeated test cycles can make the problem worse and may lead to water around the machine.
When should I call for dishwasher repair?
Call if the code returns after cleaning the filter, checking the hose, and confirming the sink drain is clear.
Beacon Services & Appliances
(352) 726-7530 • www.BeaconSaves.com