LG Washer E1 Error Code: Causes and Fixes

Editorially reviewedUpdated 2026-02-20 · Model family: Series 100

Quick answer: Water level pressure mismatch

What you’ll notice

Washer stops cycle and shows E1.

LG Washer Code E1 low severity

Common causes

  • Intermittent washer sensor reading outside expected range.
  • Temporary power-state mismatch after a surge or abrupt cycle interruption.
  • Mechanical restriction in a core washer subsystem (airflow, drain, or movement).
  • Wiring harness connection seated loosely due to vibration over time.

Step-by-step fix

  1. Power-cycle the unit for 3 minutes, then restart a short test cycle.
  2. Inspect accessible filters, vents, or drains specific to your washer and clear debris.
  3. Confirm the appliance is level and stable to avoid false sensor triggers.
  4. Run one empty maintenance cycle and observe whether the code returns.
  5. If repeated, inspect harness connections and service documentation for continuity checks.

Tools you may need

FlashlightMicrofiber clothSmall brushScrewdriver set

Prevention

  • Run monthly maintenance cycles and clean filters on schedule.
  • Avoid overloading and keep installation clearances within manufacturer guidance.
  • Use surge protection where local power quality is inconsistent.

When to stop DIY

Stop and call a licensed technician if the code reappears after two full restart attempts or if you detect heat, smoke, or water leakage.

FAQ

What does E1 mean on LG washer?

E1 usually indicates: Water level pressure mismatch.

Can I keep using the appliance with E1?

Use caution. Severity is low. Stop and call a licensed technician if the code reappears after two full restart attempts or if you detect heat, smoke, or water leakage.

How long does this fix usually take?

Typical first-pass troubleshooting takes 10-35 minutes.