Samsung Dishwasher Error 5C — What It Means
The Samsung dishwasher error code 5C (sometimes displayed as 5C or “5:c”) generally indicates a drain problem. In plain terms, the appliance senses water that isn’t leaving the tub quickly enough or a fault in the drain system. This can be caused by clogged filters, a blocked or kinked drain hose, debris or foreign objects in the sump, a faulty drain pump, or problems with the garbage disposal/air gap connection. Left unresolved, a 5C error can lead to standing water, longer cycle times, poor cleaning performance, unpleasant odors, potential water damage if leaks develop, and, in rare cases, electrical issues if water reaches components.
Common Causes
- Clogged filter or debris trapped in the sump
- Blocked, kinked, or clogged drain hose
- Obstruction at the garbage disposal or sink air gap
- Faulty or jammed drain pump impeller
- Failed drain pump motor or electrical connection
- Check valve or non-return valve stuck or broken
- Incorrect hose routing or poor installation (too low/high loop)
- Control board or sensor fault reporting drain incorrectly
- Foreign objects (glass, food, small utensils) blocking drain path
Troubleshooting Steps
- Safety first. Turn off the dishwasher, unplug it or switch off the breaker, and shut off the water supply before any inspection or disassembly.
- Check and clean the filter and sump. Remove the bottom rack, take out the filter assembly, and clear food debris or broken glass. Rinse the filter under running water.
- Look inside the sump area. Use a flashlight and remove any visible foreign objects that could jam the pump impeller.
- Inspect the drain hose. Follow the hose from the dishwasher to under the sink. Check for kinks, clogs, or pinched sections. Disconnect and flush the hose if safe to do so.
- Check the garbage disposal and air gap. If the disposal was recently replaced or not used often, clear the knockout plug or debris. Ensure the air gap (if present) is free of buildup.
- Run a drain cycle or diagnostic mode. After clearing debris, power the machine and start a drain or diagnostic cycle to see if the code clears and water evacuates normally.
- Listen to the drain pump. During a drain attempt, a healthy pump makes a humming or whirring noise. If it’s silent or grinding, the pump may be faulty or jammed.
- Inspect pump and impeller. Remove the lower access panel per your model’s service instructions and check the pump for obstructions. Manually spin the impeller (with power off) to ensure it moves freely.