If you’ve ever seen the Samsung dishwasher OC code appear on your machine, you know how frustrating it can be. This error means your dishwasher is having trouble draining water properly, which can stop your cleaning cycle dead in its tracks.
But don’t worry—you’re not alone, and fixing this issue might be easier than you think. In this guide, you’ll discover what causes the OC code, simple steps you can take to troubleshoot it yourself, and when it’s time to call in a professional.
Keep reading to get your dishwasher back to working perfectly—and save yourself time and money in the process.
Oc Error Causes
The Samsung dishwasher displays the OC error code when it detects water overflow or drainage problems. This error stops the dishwasher to prevent water damage. Knowing the causes helps in quick fixing. The OC error mainly points to issues in draining or water control parts.
Below are common causes that trigger the OC error. Checking these parts can solve the problem.
Drainage Issues
Drainage problems are the top reason for the OC error. Food particles and debris can block the drain filter. A clogged drain hose also stops water from flowing out. Water stays inside the dishwasher, causing overflow. Cleaning the filter and hose often clears this issue. Make sure the drain hose is not bent or twisted.
Float Switch Problems
The float switch senses water levels inside the dishwasher. If it gets stuck or damaged, it sends false signals. The dishwasher then thinks it is overflowing. Dirt or debris can jam the float switch. Testing and cleaning the float switch helps avoid wrong readings. Replace it if it fails to move freely.
Water Inlet Valve Faults
The water inlet valve controls water flow into the dishwasher. A faulty valve may let too much water in. This causes water to overflow, triggering the OC error. Check the valve for leaks or damage. Replacing a defective valve stops excess water from entering.
Drain Pump Malfunctions
The drain pump pushes water out during the cycle. If the pump fails, water cannot drain properly. This leads to standing water and overflow. Listen for unusual noises from the pump. Remove blockages or replace the pump if it is broken. Proper pump function is key to preventing the OC error.

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Resetting The Dishwasher
Resetting your Samsung dishwasher can often resolve the OC error code. This code usually signals a drainage issue. Resetting helps clear temporary glitches. It restarts the dishwasher’s control system. This simple step can save you a service call.
Follow these steps carefully to reset your dishwasher. Pay attention to any standing water inside. That water could cause the error to persist.
Performing A Hard Reset
Start by unplugging the dishwasher from the power source. Leave it unplugged for at least five minutes. This pause clears the dishwasher’s memory and error codes. After the wait, plug it back in. Turn on the dishwasher and check if the OC error remains. If the error is gone, you fixed the problem. If not, move to the next step.
Checking For Standing Water
Open the dishwasher door and look inside. Remove any visible water pooled at the bottom. Use a towel or sponge to soak it up. Standing water can trigger the OC code. It prevents the dishwasher from draining properly. After cleaning, run a short cycle to test drainage. Watch for leaks or water buildup during the cycle. Clear any debris blocking the drain. This check often solves the problem without complex repairs.
Clearing Drainage Clogs
Drainage clogs cause the Samsung dishwasher OC code to appear. This error means water cannot drain properly. Clearing these clogs often solves the issue. Focus on key parts where blockages occur. Regular checks keep your dishwasher running smoothly. Below are simple steps to clear drainage clogs effectively.
Cleaning The Filter
Start by removing the dishwasher filter. It traps food particles and debris. Rinse it under running water until clean. Use a soft brush for stubborn dirt. A clean filter helps water flow out freely. Check the filter regularly to avoid clogs.
Inspecting The Drain Pump Area
Next, look at the drain pump area. It pushes water out of the dishwasher. Remove any visible debris or objects blocking the pump. Check for broken or stuck parts. Clear the area carefully to avoid damage. A free pump ensures proper drainage.
Unclogging The Drain Hose
Disconnect the drain hose from the dishwasher. Check if it’s bent or kinked, which can block water flow. Run water through the hose to remove any clogs. Use a flexible brush or plumbing snake if needed. Reattach the hose securely to prevent leaks.
Checking The Kitchen Sink Drain
Finally, inspect the kitchen sink drain connected to the dishwasher. A clogged sink drain can cause dishwasher drainage issues. Clear any blockages using a plunger or drain cleaner. Ensure water flows freely from the sink drain. This step helps avoid backup into the dishwasher.

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Inspecting Key Components
Inspecting key components is crucial for resolving the Samsung dishwasher OC error code. This error usually points to drainage issues. Checking certain parts can help identify the problem quickly. Focus on the float switch, water inlet valve, and drain pump. Each plays a vital role in proper drainage and water flow.
Cleaning And Testing The Float Switch
The float switch detects water levels inside the dishwasher. Dirt or debris can block it, causing false readings. To clean, remove any debris around the float area. Gently lift and lower the float to ensure it moves freely. Use a multimeter to test for continuity. Replace the switch if it shows no response.
Examining The Water Inlet Valve
The water inlet valve controls water entering the dishwasher. A faulty valve may cause overfilling or poor drainage. Inspect the valve for visible damage or corrosion. Test the valve coil with a multimeter for proper resistance. Clean any debris or mineral build-up around the valve. Replace the valve if it fails the electrical test.
Listening To The Drain Pump
The drain pump removes water from the dishwasher. Strange noises or silence during draining indicate issues. Run a drain cycle and listen carefully. A humming sound means the pump is trying to work but may be jammed. No sound suggests a faulty motor or power issue. Clear any visible blockages. Replace the pump if it does not operate properly.
Final Troubleshooting Steps
After completing the initial troubleshooting steps for the Samsung dishwasher OC code, these final actions help ensure the issue is fully resolved. Carefully following these steps can save time and prevent repeated errors. Confirming the dishwasher works correctly is essential before regular use.
Retesting After Fixes
Plug the dishwasher back into the power source. Run a short wash cycle to check if the OC code returns. Watch for any unusual noises or leaks during the cycle. If the error does not appear, the problem is likely fixed. Repeat the test a couple of times for confirmation. If the OC code reappears, consider reviewing the previous steps or moving to the next section.
When To Call A Technician
If the OC code persists after clearing clogs and resets, professional help is needed. Complex issues with the float switch or water inlet valve may require expert tools. Avoid forcing parts or opening sealed components. Calling a technician ensures safe, accurate repairs. This prevents further damage and saves money on costly replacements.

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Frequently Asked Questions
How To Fix Oc Error Code On Samsung Dishwasher?
Unplug the dishwasher for a few minutes to reset it. Clean the filter, drain pump, and hose to remove clogs. Check the float switch and water inlet valve for faults. Ensure the sink drain is clear. Run a test cycle; call service if the error remains.
What Does Oc Mean On Your Samsung Dishwasher?
The “OC” code on a Samsung dishwasher signals an overflow or drainage problem. Check and clear clogs in the filter, drain pump, and hose. Also, inspect the float switch and water inlet valve. Reset the dishwasher by unplugging it to clear the error code.
How To Fix Oc Error In Samsung Washing Machine?
Unplug the Samsung washing machine for a few minutes to reset it. Clear clogs from the drain hose, filter, and pump. Check the float switch and water inlet valve for faults. Run a test cycle. Call a technician if the OC error continues.
How Do You Reset The Error Code On A Samsung Dishwasher?
Unplug the Samsung dishwasher for a few minutes to reset the error code. Clean the filter, drain pump, and hose to fix drainage issues. Check the float switch and water inlet valve. Plug it back in and run a cycle to confirm the error is cleared.
What Does The Samsung Dishwasher Oc Code Mean?
The OC code means the dishwasher has an overflow or drainage problem.
Conclusion
The Samsung dishwasher OC code signals a drainage issue. Start by unplugging the dishwasher for a few minutes to reset it. Next, check and clean the filter, drain pump, and drain hose for blockages. Also, inspect the float switch and water inlet valve for any problems.
Fixing these common causes usually clears the error. Regular maintenance helps prevent this issue from returning. Keep your dishwasher clean and ensure proper drainage for smooth operation. Simple steps can save time and avoid costly repairs. Stay attentive to small signs to keep your dishwasher working well.