Samsung Dishwasher 3C — What It Means & How to Fix It
Also shown as 3E on some models.
The circulation pump that sprays water around the tub didn't operate as commanded — restart once per Samsung's guidance, and if it returns, the pump needs professional attention.
What this code means
3C (3E on older panels) is a pump operation error: the main circulation pump — the one that pressurizes the spray arms, not the drain pump — failed to run the way the control board asked. Samsung's official advice is short for a reason: beyond a restart and a debris check, everything else is inside the sump.
3C concerns the wash pump; drain problems show 5C instead. If your symptom is water left in the tub, you're on the wrong page — see the 5C guide.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| One-off pump control glitch | Common | Yes — restart the cycle |
| Debris jamming the circulation pump impeller | Common | Partly — clean filter and sump |
| Circulation pump motor failure | Occasional | No — technician job |
| Pump wiring or board fault | Less common | No — technician job |
What you can try yourself
- Cancel and restart the cycle — Samsung's first-line advice, and it clears the one-off cases.
- Remove the bottom rack and clean the filter assembly, then check the sump opening for hard debris; a shard of glass or a pit can stall the impeller.
- Confirm the spray arms spin freely by hand — a jammed arm sometimes accompanies a struggling pump.
- Run a short cycle and listen: a healthy pump settles into a steady wash whoosh, while silence or a strained hum after the fill means stop and book service.
- If the code returns on a clean unit, that's the end of the DIY road — the pump lives under the sump.
When to call a technician
- 3C returns after a restart and a thorough filter/sump clean.
- The unit fills but never makes the spraying sound, and dishes come out untouched.
- Humming or grinding from beneath the tub during the wash phase.
Typical professional repair cost: Circulation pump replacement typically runs $200–$350 including labor.
Frequently asked questions
How do I know if it's the wash pump or the drain pump?
By the symptom and the code. Drain pump trouble leaves water standing and shows 5C. Wash pump trouble fills and drains fine but never sprays, leaving dishes dirty, and shows 3C. They're separate parts with separate prices.
Why do my dishes come out dirty with a 3C code?
No pump pressure means no spray, so water just sits in the sump while the cycle goes through the motions. Cleaning performance collapsing alongside the code is confirmation the pump genuinely isn't running.
Can hard objects really break the pump?
They're the leading avoidable cause. Glass fragments, olive pits, and toothpicks slip past a poorly seated filter and chew the impeller. Keeping the filter properly locked in place is cheap pump insurance.
Related Samsung codes
- Samsung Dishwasher LC Moisture reached the leak sensor in the dishwasher's drip pan — sometimes a real leak, but false alarms from a recent move, a spill, or even high humidity are well known.
- Samsung Dishwasher 4C The dishwasher isn't receiving enough water — start with the shut-off valve under the sink and the supply line before suspecting any failed part.
- Samsung Dishwasher 5C The dishwasher couldn't pump its water out — the filter and sump catch most of the blame, with the drain hose and a never-removed disposal knockout plug close behind.
- Samsung Dishwasher OC The dishwasher measured more water inside than any cycle should use — oversudsing fakes it, a stuck inlet valve causes it for real, and a sensor fault lies about it.
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