Match the symptom, then work through the safe checks.
1. What best matches what you observe?
2. Complete only the checks that are safe for you.
Show stop conditions
- PC1 returns after one restart
- The clutch repeatedly shifts, clicks, or grinds
- Hall-sensor, wiring, actuator, or PCB diagnosis is required
Likely causes
- The clutch Hall sensor is producing an abnormal signal
- The clutch reaches a position but feedback becomes implausible or disappears
- The Hall-sensor connector or wiring harness has an intermittent fault
- The clutch actuator or control circuit needs model-specific service diagnosis
Quick checks, in order
Confirm PC1 or PE1 on the display
Samsung separates PC1/PE1 from PC/PE. Record the exact code and full model number before service.
Power-cycle once
Turn the washer off for a few minutes and retry once if there are no unusual noises, leaks, or electrical symptoms.
Note whether the fault occurs during shifting
Record whether PC1 appears as the washer changes between wash/spin states; that timing is useful for model-specific clutch feedback diagnosis.
Do not probe the Hall circuit as a user check
Hall-sensor, clutch-motor, harness, and control measurements require access to internal parts and should be handled by qualified service.
Does clutch-position feedback fail after the position was detected?
A repeatable clutch-feedback fault needs service diagnosis rather than repeated resets.
That behavior fits Samsung's distinction: position is detected, then Hall-sensor feedback becomes abnormal.
Use the PC guide instead; Samsung defines that condition as the clutch position itself not being detected.
Stop and get qualified help when
- PC1 returns after one restart
- The clutch repeatedly shifts, clicks, or grinds
- Hall-sensor, wiring, actuator, or PCB diagnosis is required
Official support and model manuals
Use the full model number from the rating label. The manufacturer manual is the deciding reference when codes differ by region or product family.
Frequently asked questions
What does Samsung washer PC1 mean?
Samsung defines PC1/PE1 as a clutch Hall-signal error after clutch position detection.
Does PC1 prove the Hall sensor itself is bad?
No. The code identifies the feedback problem area; the sensor, connector, harness, actuator behavior, or control input can all require model-specific diagnosis.