LG identifies PE, and E33 on some products, as a pressure or water-level sensor error.
What PE / E33 means
LG identifies PE, and E33 on some products, as a pressure or water-level sensor error.
What you may notice
- The display or status light shows PE / E33
- The display shows the warning early in a cycle
- The machine may pause or drain
- Readings may appear inconsistent
Most likely causes
- 01A sensor reading is outside its expected range
- 02Moisture or residue affects a connection
- 03A hose or wire to the sensor is restricted
- 04A recent power event disrupted the control
- 05The sensor or control board needs service
Safe checks, in order
Start with the simplest non-invasive check. Stop as soon as the error clears; repeated resets can hide a condition without correcting it.
Record the exact code
Photograph the display and note when the warning appears.
Check the obvious conditions
Confirm the appliance is level, dry around its controls, and not overloaded.
Cycle power once
Disconnect power for the manufacturer-recommended interval, then restore it.
Stop if it returns
Do not replace or bypass a sensor based on the code alone.
Know where to stop
Sensors often protect against overflow, overheating, or unsafe motion. Do not bypass them or probe live circuits.
When to call a technician or support
A returning sensor code normally requires model-specific testing by a qualified technician.
When you call, have the exact product model, the complete code or light pattern, and when it appeared.
Where this information came from
We use the manufacturer's current published guidance as the starting point, then organize it into a safer, beginner-friendly sequence.
LG USA Support — front-load washer error-code list Source last checked August 18, 2026. Manufacturer instructions and model manuals take priority over this independent summary.