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Samsung Dishwasher PC — Zone Wash diverter malfunction

Samsung Dishwasher · Error code PC

What PC Means

On models with Zone Wash, the diverter motor that routes water to upper/lower/zone spray arms isn't operating correctly. Wash performance suffers.

Symptoms

  • PC on display
  • Only top or only bottom rack getting clean
  • Cycle longer than normal
  • Diverter clicking but not changing zones

Common Causes

1
Failed diverter motor

Stepper or DC motor stalled or open winding.

2
Debris jamming diverter disc

Particles past the filter stalling the diverter.

3
Wiring fault to diverter

Harness pinched at the sump area.

4
Failed position sensor

Hall sensor not reporting diverter position.

How to Fix It

  1. Power off at the breaker for 5 minutes and try again.
  2. Pull the filter and inspect the sump for debris that could jam the diverter.
  3. If recurring, pull the dishwasher and access the diverter motor under the tub.
  4. Test motor windings and inspect wiring connector.
  5. Replace the diverter motor assembly if windings are open or it's mechanically seized.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Samsung dishwasher diverter motor View on Amazon→

More Samsung Dishwasher Codes

1C 1C — Low water level / fails to start 1E 1E / IE — Filter clogged / heater fault 3C 3C Error — Wash Pump Failure 3E 3E — Hot water supply too hot 4C 4C / 4E — Water Supply Error 4C5 4C5 / 4E5 — Fill timeout with dry tub

All Samsung codes → All dishwasher codes →

Verified against manufacturer documentation: samsung.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.