SAMSUNG PE

Samsung Dishwasher Error PE: Half Load Function Error — Half Load Mode Not Operating

Clear meaning, realistic next steps, and safe guidance without turning the page into a long repair manual.

What it means

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.

Severity

Medium - some user checks may help, but repeated faults often need service.

Can you fix it yourself?

Partial — start with DIY steps

Most likely cause

Half Load valve or solenoid not actuating correctly to redirect water to one rack zone

Estimated time for safe first checks: 10–15 min for spray arm check; Professional if valve fails.

Step-by-Step DIY Fix Guide

  1. SAFETY: Disconnect power at the circuit breaker.
  2. Inspect both upper and lower spray arms for clogged nozzles — use a toothpick to clear each spray hole.
  3. Run the dishwasher on a standard full cycle (not Half Load) to confirm the machine operates without PE.
  4. If PE only appears on Half Load cycles, the Half Load solenoid needs professional diagnosis.
  5. If PE appears regardless of cycle selected, call Samsung Support at 1-800-726-7864.

If the code comes back

  • PE persists when running standard full cycles with no Half Load selected
  • Half Load function has never worked correctly since installation

What This Error Means

Error PE on your Samsung dishwasher means: 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. The dishwasher's self-diagnostic system has flagged this condition and may have paused the current cycle.

The most frequent cause is half load valve or solenoid not actuating correctly to redirect water to one rack zone. Work through the causes and steps below before calling a technician.

Many cases of PE 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.

Most Likely Cause by Symptom

The Samsung dishwasher may stop, pause, or refuse to complete the cycle normally.

Likely cause: Half Load valve or solenoid not actuating correctly to redirect water to one rack zone

Check first: SAFETY: Disconnect power at the circuit breaker.

Common Causes

  • Half Load valve or solenoid not actuating correctly to redirect water to one rack zone
  • Spray arm clogged in the active zone reducing detectable flow
  • Control board relay for Half Load circuit failed
  • Feature selected on a model variant that has a hardware limitation with this cycle mode

What Not to Do

  • Do not repeatedly select Half Load if PE is appearing — avoid the function until the fault is diagnosed

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

  • Half Load valve/solenoid ($25–$70)
  • Control board if relay controlling Half Load 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

PE persists when running standard full cycles with no Half Load selected

  • Half Load function has never worked correctly since installation

How to Prevent It Recurring

  • Clean spray arm nozzles every 3 months — mineral deposits that restrict flow are a common cause of Half Load detection errors

Related Error Codes

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.