Samsung Dishwasher 3C error code

The dishwasher detected a pump operation error - the circulation or drain pump has failed or is not operating. The cycle usually stops when this appears.

Also shown as: 3C

Last updated: October 6, 2026

Quick answer: Samsung dishwasher error code 3C: pump operation error. The most common cause is failed circulation or drain pump. Try this first — turn off the dishwasher and restart the cycle. If that does not clear it, clean the filter and sump area.

What causes the 3C error?

  • Failed circulation or drain pump
  • Pump impeller jammed by debris or broken glass
  • Loose or damaged pump wiring
  • Blocked sump or filter starving the pump
  • Failed main control board not driving the pump

How to fix Samsung 3C — step by step

Work through these in order, from simplest and safest first. Stop as soon as the code clears.

  1. Turn off the dishwasher and restart the cycle
    Power the dishwasher off completely, wait a minute, and start the cycle again. Samsung's first step for 3C is a clean restart - a stalled pump can recover.
  2. Clean the filter and sump area
    Remove the bottom filter and clear food, glass shards, and debris from the sump around the pump intake. A jammed impeller is a common mechanical cause.
    Safety warning: Watch for broken glass in the sump - wear gloves.
  3. Check the drain hose for blockages
    Make sure the drain hose under the sink is not kinked or clogged. A blocked hose overloads the pump and can trigger the error.
Related guide: Dishwasher troubleshooting — fix common problems, with links to every dishwasher error code we cover.

When to call a technician

Stop and call a qualified technician if any of these apply:
  • 3C returns after a restart and cleaning
  • The pump hums but moves no water
  • The pump motor needs continuity testing or replacement
  • The main control board is not driving the pump

Frequently asked questions

Is 3C a drain problem or a wash problem?

It can be either pump. The dishwasher uses pumps for both circulating wash water and draining. If the tub will not drain, suspect the drain pump; if it fills but does not spray, suspect the circulation pump.

I hear humming but no water movement with 3C. What does that mean?

The pump motor is getting power but the impeller is jammed or broken - usually debris. Clean the sump; if humming continues with no flow, the pump needs replacement.

Can I run the dishwasher with 3C showing?

No. The dishwasher stops the cycle because it cannot move water. Running it anyway risks overheating the pump motor.

Sources

Every meaning and fix above was checked against official manufacturer documentation:

FixCode provides general troubleshooting information only — not professional repair advice. If you are unsure about any step, stop and call a qualified technician. Repairs done incorrectly can be dangerous and may void your warranty.

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