Samsung · Dishwasher Moderate

PE — Half Load function error

On models with Half Load, the diverter or valve that routes water to only the upper or lower rack failed during a Half Load cycle.

Keep using it?
Yes, with caution
DIY difficulty
Moderate
Verified against
samsung.com ↗

How to fix it

  1. Run a normal full-load cycle to confirm general operation.
  2. Power off at the breaker and try the Half Load option again.
  3. If still failing, pull the dishwasher to access the diverter from below.
  4. Inspect for debris and test motor windings.
  5. Replace diverter assembly if mechanically failed.

Why it happens

Typical signs: PE on display · Half Load cycle aborts · Both racks spray when only one should · Diverter motor stalled sound

  • Failed half-load diverter Diverter actuator open or stalled.
  • Wiring fault to diverter Harness disconnect under tub.
  • Debris in diverter Filter bypass debris jamming the mechanism.
  • Main control board fault Driver output not firing the diverter.

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.

  • Samsung dishwasher diverter assembly Common replacement
    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 →

Frequently asked questions

What does the PE code mean on a Samsung dishwasher?

On models with Half Load, the diverter or valve that routes water to only the upper or lower rack failed during a Half Load cycle.

What causes the PE code on a Samsung dishwasher?

Failed half-load diverter: Diverter actuator open or stalled. Wiring fault to diverter: Harness disconnect under tub. Debris in diverter: Filter bypass debris jamming the mechanism.

Is it safe to keep using a Samsung dishwasher with a PE error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix PE on a Samsung dishwasher?

Run a normal full-load cycle to confirm general operation. Power off at the breaker and try the Half Load option again. If still failing, pull the dishwasher to access the diverter from below.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: samsung.com.