Step-by-Step DIY Fix Guide
- SAFETY: Disconnect power at the circuit breaker.
- Remove the lower rack and inspect the spray arm or spray nozzles for the Zone Wash section — clear any visible blockages with a toothpick or thin wire.
- Run the dishwasher without Zone Wash selected — run a standard cycle instead.
- Restore power and test a standard cycle without Zone Wash active.
- If PC only appears during Zone Wash and clears on standard cycles, the Zone Wash valve needs professional diagnosis.
- If PC appears regardless of the cycle selected, call Samsung Support at 1-800-726-7864.
If the code comes back
- PC persists even when running standard cycles without Zone Wash selected
- Zone Wash does not activate at all and PC appears every time it is selected
What This Error Means
Error PC on your Samsung dishwasher means: The Zone Wash function — which allows targeted intensive washing of one zone of the dishwasher — has detected a malfunction. The Zone Wash valve or the spray system for the selected zone is not operating correctly. The dishwasher's self-diagnostic system has flagged this condition and may have paused the current cycle.
The most frequent cause is zone wash valve or solenoid not actuating correctly. Work through the causes and steps below before calling a technician.
Many cases of PC can be partially resolved by the homeowner. Complete all DIY steps before contacting a technician.
The dishwasher will not resume full operation until the condition is resolved. Work through all steps before contacting Samsung Support at 1-800-726-7864.
What users usually notice before this code
Samsung dishwasher warnings like this often show up after standing water, slow draining, heavy food residue, or a cycle that never returned to normal at the end.
Common misdiagnoses
- Assuming the display code proves one exact failed part before the safe first checks are done.
- Restarting the appliance repeatedly instead of confirming whether the same fault returns after one clean recovery attempt.
Most Likely Cause by Symptom
The Samsung dishwasher may stop, pause, or refuse to complete the cycle normally.
Likely cause: Zone Wash valve or solenoid not actuating correctly
Check first: SAFETY: Disconnect power at the circuit breaker.
Common Causes
- Zone Wash valve or solenoid not actuating correctly
- Spray arm for the selected zone clogged with mineral deposits or food debris
- Zone Wash function selected on a model that doesn't fully support it in the current mode
- Control board relay for Zone Wash circuit failed
What Not to Do
- Do not repeatedly select Zone Wash if PC is appearing — continued activation of a faulty valve can cause further damage
Model and Display Variation Notes
Model-family notes
- Samsung dishwasher display wording and code formats can vary by series.
- If your model behaves differently, check the owner manual before trying any deeper maintenance step.
Display and panel differences
- Panel wording can vary by series, so confirm the exact code pattern before buying parts.
Parts, Tools and Service Options
Common parts
- Zone Wash valve/solenoid ($30–$80)
- Control board if relay controlling Zone Wash circuit has failed ($80–$200)
Manual and model check
Check your exact model and manual before ordering any Samsung dishwasher parts.
Service option
Samsung service visit if the warning returns after the basic checks are complete.
Suggestions in this section are organized to support the troubleshooting flow first. Any future affiliate relationships should be disclosed clearly.
When Not to Keep Troubleshooting
PC persists even when running standard cycles without Zone Wash selected
- Zone Wash does not activate at all and PC appears every time it is selected
How to Prevent It Recurring
- Run a dishwasher cleaning cycle monthly to prevent mineral buildup in Zone Wash spray nozzles
Related Error Codes
PE
The Half Load function — which restricts washing to only the upper or lower rack to save water and energy on smaller loads — is not operating correctly. The valve or spray system controlling the inactive rack zone is malfunctioning.
3C
The dishwasher's wash pump has failed or is not operating within normal parameters. The pump is responsible for circulating water through the spray arms during the wash cycle. When 3C appears, the pump cannot move water and the wash cycle stops.
CE
The dishwasher's internal electronic components cannot communicate with each other. A communication breakdown has occurred between the main control board and the display or motor control subsystem, halting the cycle.
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Use the code page for one careful first pass, then stop if the same warning returns or the appliance still cannot get back to normal operation.
Extra notes
- This page is based on Samsung support material and stays conservative where model-specific guidance may vary.
- The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.
Source and model notes
Last reviewed: 2026-04-08
Based on: Based on Samsung support material and edited into consumer-safe guidance for the exact code family on this page.
View Samsung US Official Support
Model coverage note: Samsung dishwasher code meanings can vary by series, control panel, and model family, so use this page as a safe starting point rather than a replacement for the model-specific manual.
Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.
Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.