A Samsung dishwasher that’s not draining usually has a clogged filter, a kinked or blocked drain hose, or a garbage-disposal connection problem. Clean the filter, run a force drain, and check the hose before calling anyone. If the 5C, SC, or OC error returns after that, the drain pump likely needs service.
5 Star Appliance Repair is a family-owned company that has repaired dishwashers and other home appliances for over 20 years, with a 4.83 average rating across 11,000+ reviews. This guide walks through the same drain checks our technicians do first, in the order that finds the problem fastest. Standing water already backing up? Book a repair online and a tech can take it from there — the service call fee is waived when you proceed with the repair.
What the 5C, SC, 5E, and OC codes mean
Samsung uses 5C (newer models) and 5E (older models) for a drain error — the machine tried to pump out and couldn’t. SC is the same family, and OC signals an over-level water condition. All four point at the same short list: filter, hose, air gap or disposal, then pump.
Samsung’s own support guide lists a blocked filter or drain hose as the first suspects for a no-drain condition. The code tells you where to look, not which part to buy — most drain errors clear without any part at all.
Fix it in this order: the 10-minute checks
- 1. Clean the filter and sump. Twist out the cylindrical filter at the tub floor, rinse it, and check the sump opening for glass, labels, or seeds.
- 2. Run a force drain. On most models, press Cancel (or hold Start/Reset) — the machine pumps out for about 60–90 seconds. If water moves now, the pump works and the clog is upstream.
- 3. Check the drain hose. Look for kinks behind the unit and confirm the hose rises in a high loop before it meets the sink drain.
- 4. Check the disposal connection. If the dishwasher drains into a newly installed garbage disposal, the knockout plug may never have been removed — a classic no-drain cause.
- 5. Clear the air gap. If your sink has one, pop the cap and clear debris.
These five checks resolve a large share of drain complaints without a service visit — Samsung’s troubleshooting flow covers the same ground for good reason.
When it’s the drain pump (and when it isn’t)
If the tub still holds water after the checks above and the 5C code returns, the drain pump or its impeller is the leading suspect. A humming pump that moves no water often has debris jammed in the impeller; a silent pump has likely failed electrically.
A drain pump swap is usually a one-visit fix once the part is on hand. Check valve faults and sump-housing clogs mimic pump failure, which is why a technician tests the pump before replacing it — you shouldn’t pay for a part the machine didn’t need.
What is the most common reason a dishwasher won’t drain?
A dirty filter is the most common reason any dishwasher stops draining, and Samsung’s fine-mesh filters clog faster than most when dishes go in heavily soiled. Rinsing the filter monthly prevents the majority of 5C errors. Scrape plates, skip pre-rinsing obsessions, and the filter stays cleaner longer.
Frequently asked questions
How do I force drain my Samsung dishwasher?
Force drain a Samsung dishwasher by pressing the Cancel button (or holding Start/Reset for 3 seconds on some models) with the door closed. The drain pump runs for roughly 60–90 seconds. If water pumps out, the pump is healthy and the recurring clog sits in the filter, hose, or disposal connection.
Why does my Samsung dishwasher have standing water after every cycle?
Standing water after every cycle means the drain path is partially blocked — usually the filter or the hose’s connection point at the sink. A small puddle in the sump well is normal; water covering the tub floor is not. Work the checks in order: filter, force drain, hose, disposal, air gap.
Is a Samsung dishwasher worth fixing?
Usually yes for drain problems — most are cleared with cleaning or an inexpensive part, well under the 50% -of-replacement threshold where repair stops making sense. A dishwasher near 10 years old with a failed pump and control problems is the case to weigh replacement. An honest quote makes that call easy.
Still holding water? We’ll take it from here
If the filter is clean, the hose is clear, and the 5C error keeps coming back, the fix needs tools and parts — not more resets. Book with 5 Star Appliance Repair at our contact page: same-day appointments are available seven days a week, 7am–7pm, and the service call fee is waived with repair. Our dishwasher repair service covers all Samsung models, and you can see everything we fix for the brand on our Samsung repair page.