Samsung Dishwasher 3C Error Code: Meaning, Causes & Fix
Wash motor (circulation pump) error — the main wash pump is not running correctly.
Samsung's owner-facing wording for 3C is deliberately plain: 'Pump operation error — the pump has failed' (Samsung US), or 'Pump operation check' (Samsung AU and the DW80B-series manual). Samsung UK describes the presentation exactly: the dishwasher fills but never begins active washing, shows no spray action, and stops. The pump in question is the circulation (wash) pump that drives the spray arms — Samsung's dishwasher service documentation names it directly, listing the 3C causes as a foreign object entered in the circulation pump and the pump stuck, the circulation pump out of order, the main PBA out of order, and the inverter PBA out of order. Without circulation there is no wash, which is why a 3C machine can fill and drain normally yet clean nothing. (Verified from dishwasher documentation only — not from the washer or dryer 3C entries.) 3C shows the two layers of Samsung's documentation working as designed. The owner layer is almost terse — pump operation check, turn it off and on, service if it persists — because at that layer the only honest information is the presentation Samsung UK spells out: fills, no spray action, stops. The service layer, in Samsung's own service documentation, is where the code gets its anatomy: a BLDC circulation pump whose failure modes are mechanical (a foreign object, a stuck pump) or electronic (the pump out of order, the main PBA out of order, the inverter PBA out of order). Keeping the layers separate is what makes the page useful: owners get Samsung's exact test and stopping rule, and the service visit starts from Samsung's actual suspect list instead of a guess.
What causes the 3C code on a Samsung dishwasher?
Debris jammed in the wash pump
Glass and hard debris pass the filter and stall the impeller.
Wash motor failure
Winding or bearing failure — often preceded by getting louder.
Motor control (inverter/board) fault
The drive electronics fail to run a good motor.
Wiring fault to the motor
Low-mounted harness, vulnerable to leaks and vermin.
A foreign object in the circulation pump, per Samsung's service documentation
Samsung's dishwasher service documentation for 3C is specific in a way the owner pages are not: the first listed cause is a foreign object entered in the circulation pump, leaving the pump stuck. The pump sits downstream of the filter system, so the object story usually has a history — a filter left unseated after cleaning, broken glass from an earlier load, or hard debris (bones, labels, food sludge of the kind Samsung's UK drain-pump entry names) that worked past the sump. A 3C that arrives suddenly, after months of normal service, fits this branch better than electronic wear does.
The main PBA or the inverter PBA, the service list's other two entries
The same Samsung service table closes its 3C row with two electronic suspects: the main PBA is out of order, and the inverter PBA is out of order. The circulation pump on these platforms is a BLDC (inverter-driven) pump, so it has a drive board of its own; either board can leave a healthy pump unpowered or unreported. This is the branch that explains a 3C with a silent, clean sump and no debris history — and it is why Samsung's owner remedy stops at a restart: separating a stuck pump from a dead drive board is a service measurement, not an owner inspection.
Checks to run before you replace anything
- Listen to a cycle: fill and drain sounds normal, but the wash phase is quiet or stops — that pattern is 3C's signature.
- Inspect the sump (filter out) for debris that could have reached the pump.
- Confirm the 3C presentation Samsung UK documents before diagnosing anything: the dishwasher fills, but never begins active washing, shows no spray action, and stops. Filling normally rules the supply side out; draining normally (if the machine drains on cancel) rules the drain side out; what remains missing is circulation — the wash itself.
- Do Samsung's functional check first and exactly as written: turn off the dishwasher and restart it (Samsung AU and the DW80B manual), or in Samsung UK's version, power the unit off for one minute and retry. Samsung US completes the logic — if the error still occurs after that restart, request service. A single 3C that never returns was transient; a returning 3C has passed Samsung's test and failed it.
- Listen during the fill-to-wash transition on the retry: spray action beginning and then dying is circulation starting and stopping, while total silence where the wash roar should be is circulation never starting. Both are 3C, but together with any history of glass breakage or a recent filter removal, the first pattern supports the service manual's stuck-pump branch when you report the fault.
How do i fix my samsung dishwasher error code 3c?
- Clear debris from the sump/pump inlet area.
- Replace the wash motor/pump assembly if jammed solid or electrically dead (technician-level for most owners: machine out, base access).
- Board drive diagnosis only after the motor is proven.
- Samsung's owner-level fix for 3C is the restart, full stop: Samsung US says turn off the dishwasher and try to start the cycle again, and if the error still occurs, visit the Support Center to request service. Samsung Canada says the same in other words — restart, and if it reoccurs, contact the Service Centre. This page does not extend that path, because Samsung doesn't.
- What you can legitimately do before service is protect the diagnosis: make sure the filter assembly is correctly seated (an unseated filter is how debris reaches the pump the service manual blames), note any recent glass breakage in the tub, and record whether the machine fills and drains normally. That evidence sends the technician straight to the service manual's three suspects — pump, main PBA, inverter PBA — instead of re-running the supply and drain checks you have already eliminated.
- Do not keep cycling a 3C dishwasher hoping the pump frees itself. A stuck circulation pump that is repeatedly commanded can be damaged by the attempts, and a cycle that 'completes' without spray action has not washed anything — Samsung's design stops the machine, and the correct response to a confirmed stop is the service visit Samsung prescribes.
The part that usually fails: Circulation (wash) pump motor assembly
The part at the centre of 3C. Bearing noise before failure is the usual history.
Samsung dishwasher 3c error code reset
Samsung's documented response is the functional check: turn off the dishwasher and restart it (Samsung AU / DW80B-series manual); Samsung UK phrases it as powering the unit off for one minute and retrying. If the error still occurs after that, Samsung US directs you to request service — there is no further owner reset for 3C.
Samsung dishwashers clear most codes when you cancel the cycle (hold Start/Cancel for about 3 seconds so the machine drains), then cut power at the breaker for 5 minutes. Restore power and run a short cycle. Leak-related codes (LC) will return immediately if water is still sitting in the base pan — the reset cannot clear water that is physically still there.
Why does the 3C code keep coming back?
3C returning after a motor swap means the drive board or harness is at fault — stop swapping and get a diagnosis. A 3C that returns after the restart has already told you the most important thing — it is not transient — and its timing refines the branch. Returning at the same point in every cycle, just as washing should begin, matches the service manual's stuck-pump story most closely, especially with a glass-breakage or filter history behind it. Returning at varying points, or alongside other electrical oddities, leans toward the PBA branches the same table lists. Either way, Samsung's route does not change: the code goes to service with the pattern recorded. What should not happen is a parts guess at home — on this platform a wrong guess means opening a built-in dishwasher to replace a pump whose drive board was the fault, and earning the same 3C for the effort.
How to stop 3C coming back
- Debris jammed in the wash pump: Glass and hard debris pass the filter and stall the impeller.
- Wash motor failure: Winding or bearing failure — often preceded by getting louder.
- Motor control (inverter/board) fault: The drive electronics fail to run a good motor.
Retrieving stored fault codes on Samsung dishwashers
Samsung dishwashers have a service/test mode on many models (entered with a button combination such as holding Normal + Power or a Delicate/Heavy pairing, model-dependent) that runs each component — fill, wash motor, drain, heater, dispenser — and displays stored codes. The combination for your model is in the service manual; the user manual does not document it.
Other Samsung dishwasher error codes
| Code | Meaning | First fix |
|---|---|---|
| 1C | Low-water level check (fold 'C1' is this code transposed) | Check the filter is not clogged, use dishwasher detergent, load dishes evenly, and turn the dishwasher off and on again |
| 1E | Clogged filter error on WaterWall models; low water level error in DW80 manuals (fold 'E1' is this code transposed) | Clean the fine filter at the bottom of the dishwasher and remove excessive soils from the tub, then run a cycle with detergent |
| 3E | High temperature water supply error on Samsung support pages; communication error (3E1 to 3E5, grouped with AE and bE3) in DW80 WaterWall manuals | Verify the hot water supply is not set above 176°F (80°C); if the temperature is correct and the code returns, request Samsung service |
| 4C | Water supply error — the dishwasher is not filling (or filling too slowly). | Restore full supply: tap open, hose unkinked, screen cleaned. |
| 4E | Water supply error (older display of the 4C water supply check) | Check the water supply valve is open and the inlet valve and line are not frozen or clogged; if it continues, close the supply valve and contact a Samsung service center |
| 4E5 | Water supply error variant; the dishwasher attempts to fill, then stops early with a dry tub (also shown as 4C5) | Make sure the water supply exists with proper pressure, the tap is open, and the hose is not kinked |
| 5C | Drain error — the dishwasher did not drain in the allowed time. | Clean filter and air gap; clear hose/sink path. |
| 5E | Drain error (older display of the 5C drain check; 5E1 to 5E5 in DW80 manuals) | After closing the water supply valve, check whether the drain hose is clogged or folded and whether the drain hole inside the sump is clogged |
| 7C | Water-level / wash-system error on WaterWall models — the WaterWall reflector (vane) movement is not being confirmed. | Clear the obstruction and reseat the vane on its track. |
| 7E | WaterWall reflector error; the water reflector is not able to move correctly | Remove anything interfering with the reflector and any tape fixing it; if it happens without interference, close the water supply valve and contact an authorized Samsung service center |
| 9E | Low water level error; there is not enough water in the dishwasher | Empty the dishwasher, add detergent, and run a normal cycle; if the error still occurs, switch off power at the circuit breaker and request Samsung service |
| AC | PCB communication check; abnormal communication between the main PCB and the sub PCB | Power-cycle the dishwasher once and retry; if the problem continues, contact an authorised Samsung service centre |
| AE | Communication error listed with the 3E communication group in DW80 WaterWall manuals | Turn the dishwasher off and try to start it again; if the problem continues, contact an authorized Samsung service center |
| AP | Access Point mode; the dishwasher is in AP mode to assist with connecting to a mobile device | Complete the connection setup, or turn the dishwasher off and back on again if you are not trying to connect it |
See the full list on the Samsung Dishwasher error codes hub.
Codes 3C gets confused with
PC — Zone Wash / dividing-valve check — Samsung reports PC when the Zone Wash function is not operating correctly; in Samsung's other documentation the same code is the dividing (distribution) valve check, displayed when the dividing valve that controls water distribution is defective. (Corrected 2026-10-28 against Samsung US + Samsung AU/Gulf support and the DW80B-series and DW50R4040BB manuals: the earlier entry's PC1/PC2 display variants, position-switch narrative and DIY distributor-motor replacement procedure appear in no Samsung source and have been removed. Samsung's documented owner remedy is a functional check — turn the dishwasher off and on again — then service if PC continues.) Samsung documents this one code under two names for the same water-distribution system.
OC — Overflow error — the dishwasher has detected too much water entering / an overfill condition. OC means the water level rose beyond what the control expects.
SC — Drain check error — the dishwasher is not draining properly (display variant of the 5C drain fault family). SC on Samsung dishwashers is the drain fault in letter form: the pump ran but the water level did not fall as expected.
4C — Water supply error — the dishwasher is not filling (or filling too slowly). 4C on a Samsung dishwasher is the same supply fault the washer line uses: the control opened the inlet valve, watched the level/flow, and did not see the machine fill in time.
Frequently asked questions
Why do my dishes stay dirty with no obvious failure?
If the wash motor isn't circulating (3C), water isn't being sprayed — the cycle runs but nothing washes.
How Do I Fix My Samsung Dishwasher Error Code 3C?
Start and, at owner level, finish with Samsung's documented response: turn off the dishwasher and restart it (Samsung UK: power off for one minute, then retry). If 3C returns, Samsung US and Samsung Canada both direct you to request service — because Samsung's service documentation names the suspects as a foreign object stuck in the circulation pump, the circulation pump itself out of order, the main PBA, or the inverter PBA, and separating those is technician work with the machine open. Before the visit, confirm the filter is correctly seated and note whether the machine fills and drains normally; that is the evidence the diagnosis needs.
How Do I Reset the Samsung Dishwasher 3C Error Code?
Samsung's reset for 3C is the functional check itself: turn the dishwasher off and restart it — Samsung UK specifies powering the unit off for one minute before retrying. There is no button combination or breaker ritual beyond that in Samsung's documentation. The restart is also the test: a 3C that clears and stays away through full wash cycles was a transient pump-operation report, while a 3C that returns on the retry has confirmed itself, and Samsung's instruction for that outcome is to request service rather than to keep resetting.
Is Samsung Dishwasher 3C the Same as Washer or Dryer 3C?
Same code family name, different machine and different hardware — and this page is built only from Samsung's dishwasher documentation, as the others are built from theirs. On a dishwasher, Samsung defines 3C as a pump operation error: its service documentation names the circulation (wash) pump and its inverter drive. On Samsung washers and dryers, 3C belongs to their drum-motor families. So never carry a washer or dryer 3C fix across: the dishwasher's checks are its fill-wash-drain presentation (fills, no spray, stops) and Samsung's restart-then-service path.
Does a Samsung Dishwasher 3C Code Mean the Pump Has Failed?
That is Samsung US's own one-line verdict — '3C: pump operation error. The pump has failed.' — but read it the way Samsung's service documentation qualifies it: the failed pump operation can be the circulation pump itself (out of order, or stuck on a foreign object), or either of the two boards that drive and supervise it, the main PBA or the inverter PBA. So 3C means the pump system has failed, with the pump first among equals — which is exactly why Samsung's remedy is a restart to confirm, then a service diagnosis rather than a pump order.
Related guides
Facts on this page were checked against manufacturer documentation: www.samsung.com · www.samsung.com · www.samsung.com · www.samsung.com · www.samsung.com · www.samsung.com · mans.io · www.notice-facile.com · www.notice-facile.com · manuals.plus · downloadcenter.samsung.com