Samsung Dishwasher 3C Error Code: Causes & Fix

What is the Samsung Dishwasher 3C error?#

The 3C code points at the wash pump motor on your Samsung dishwasher — the pump that drives water up to the spray arms is not performing. The classic signs are no water spraying during the cycle, a humming noise from the base as the motor strains, and water left standing in the tub afterward. This is the most serious of the common dishwasher codes because it is a motor-level fault, not a filter you can rinse. There is no home hazard, but the machine cannot clean until it is repaired. A single power cycle is worth trying in case a transient jam latched the code.

3C on a Samsung Dishwasher: likely causes and repair cost#

On a Samsung Dishwasher, the 3C code signals: pump motor error.

Typical professional repair: $200–$400 · Difficulty: professional only · usually a technician job

Symptoms that often accompany 3C: No water spraying during the wash cycle; Humming noise from the base of the dishwasher; Water remaining in the tub after the cycle completes

Technician diagnostic sequence for 3C:

1. Check for a jammed pump impeller: remove the filter assembly and look into the sump area for broken glass, bones, or other hard debris that could jam the pump
2. If the sump is clear, the wash motor or drain pump motor may be failed. Access the pump assembly by removing the lower access panel (kick plate) and the base plate beneath the tub
3. Test the wash pump motor for continuity — it should read between 5-20 ohms across the terminals. An open reading confirms a burned winding
4. Check the pump motor wiring harness connector at the main control board for corrosion — Samsung dishwashers can develop connector corrosion from the humid environment inside the machine

Parts a technician may check or replace: Samsung DD31-00016A; Samsung DD31-00005A; model-specific

Field note: Samsung dishwashers use separate wash and drain pump motors. Listen carefully: if you hear humming but no water movement, the wash pump is seized. If the wash pump works but water does not drain, the drain pump is the issue. The 3C code does not distinguish between them.

How to troubleshoot the 3C error yourself#

3C leaves limited safe options for an owner. Power-cycle the dishwasher at the breaker, then remove the filter and check the sump for a shard of glass, a bone, or debris jamming the impeller — a physical obstruction can stall the pump and trip 3C, and clearing it is worth a look. Confirm the spray arms spin freely and are not clogged at the jets. Beyond that, the causes in the table above — a failed pump motor or its wiring — are "professional" territory, since accessing and testing the wash motor means significant disassembly. If the sump is clear but 3C persists with that tell-tale hum, stop and call a technician rather than pull the pump yourself.

Is the Samsung Dishwasher 3C error worth fixing?#

3C is the dishwasher code where repair-versus-replace deserves thought. The table above lists $200 to $400 — the highest of the dishwasher codes — because pump-motor work is involved. On a newer or higher-end machine, that is worth it and restores a unit worth much more. On an older, basic dishwasher, $200 to $400 approaches a real fraction of a new one, so if the machine is well-worn, price a replacement before committing. For a dishwasher with good years left, though, fixing the wash pump is the sound choice.

Samsung Dishwasher 3C: frequently asked questions#

What does the 3C error mean on a Samsung Dishwasher?#

It indicates a wash pump motor fault, so water is not driven to the spray arms. You often hear a hum from the base and find water left in the tub.

Is it safe to keep using a Samsung Dishwasher that shows the 3C error?#

There is no home hazard, but the machine cannot clean. Avoid repeated restarts that stress the motor and arrange service.

Can I clear the 3C error myself, or do I need a technician?#

You can power-cycle and clear anything jamming the sump or spray arms. A genuinely failed pump motor is a technician repair.

How much does it cost to repair the 3C error on a Samsung Dishwasher?#

The table above lists $200 to $400, the priciest dishwasher code, reflecting wash pump motor work.

Which parts usually fail when a dishwasher throws the 3C code?#

The wash pump motor and its wiring, per the table above, sometimes preceded by an object jamming the impeller.

Is a Samsung Dishwasher with the 3C error worth repairing?#

On a newer or higher-end machine, yes. On an older basic unit, the $200 to $400 repair is a large enough share of a new one to justify pricing replacement first.