Samsung's dishwasher guidance states that 3C means the pump has failed.
What 3C means
Samsung's dishwasher guidance states that 3C means the pump has failed.
What you may notice
- The cycle stops or will not start
- The display shows 3C
- The dishwasher may beep
- The code returns after Cancel
Most likely causes
- 01The pump is jammed
- 02The pump motor has failed
- 03A connector or harness is damaged
- 04The control cannot operate the pump
Safe checks, in order
Start with the simplest non-invasive check. Stop as soon as the error clears; repeated resets can hide a condition without correcting it.
Cancel the cycle
Allow all sound and movement to stop.
Check the filter
Remove only debris accessible through the normal filter-cleaning procedure.
Cycle power once
Turn the dishwasher off at its circuit for 30 seconds, then retry.
Know where to stop
Do not access the pump, wiring, or underside unless trained and power is positively disconnected.
When to call a technician or support
Request Samsung service if the code returns after the safe checks above or if leaking, overheating, electrical odor, or abnormal mechanical noise is present.
When you call, have the exact product or vehicle model, model year where relevant, the complete code or symbol, and when it appeared.
Where this information came from
We use the manufacturer's current published guidance as the starting point, then organize it into a safer, beginner-friendly sequence.
Samsung Support — dishwasher error codes Source last checked August 16, 2026. Manufacturer instructions and model manuals take priority over this independent summary.