LG Washing machines error code
Water-level pressure sensor error
The control cannot read the expected water-level signal.
Direct answer
PE at a glance
- Meaning
- Water-level pressure sensor error
- Urgency
- Service recommended
- First safe check
- Switch the washer off.
- Model note
- LG groups PE with E33 as a water-level sensor malfunction on the current front-load guide. Component access is not an owner check and varies by model.
Confirm the symptom
What usually appears with PE
- PE or E33 appears while the washer is trying to determine water level
- The cycle pauses even though supply water is available
- The displayed code returns soon after a restart
- The actual water level may look unusually low or high
Likely causes
Why PE appears
- 01Temporary control fault
- 02Pressure-sensing system fault
- 03Wiring or sensor issue
Observation-led diagnosis
Start with what you can actually see
An error code identifies a system, not a replacement part. Match the observable condition before deciding what to check next.
| What you observe | What it suggests | Safest next move |
|---|---|---|
| PE appeared once and the tub level looks normal | The water-level reading may have been temporarily interrupted | Owner checkUse LG’s 10-second power reset and observe one restart. |
| The tub is filling higher than normal | The washer cannot safely regulate water level | Stop and serviceStop the cycle, close both supply valves, and arrange service. |
| Water enters continuously with the washer off | A separate inlet shutoff problem may be present | Stop and serviceClose both household supply valves immediately and do not reuse the washer. |
| PE returns after the 10-second reset | The level sensor, its pressure path, wiring, or control may need diagnosis | Stop and servicePreserve the displayed code and request service rather than repeating resets. |
Safe diagnostic path
What to check, in order
- 01
Switch the washer off.
- 02
Unplug it for 10 seconds as LG directs.
- 03
Restore power and restart the cycle once while watching the water level.
- 04
Arrange service if PE returns or the fill level is abnormal.
Know when to stop
Don’t push past this point
Stop immediately if the water level is unusually high or the washer fills continuously.
- Do not blow into, disconnect, or replace internal pressure tubing.
- Do not continue a cycle with an abnormal water level.
- Do not treat a cleared display as proof that level control is reliable.
Primary source
How this page was checked
The code meaning and manufacturer-specific guidance were checked against the linked support material on August 31, 2026. Confirm details against the manual for your exact model before removing panels or parts.
Read LG USA: PE and E33 water-level sensor guidance ↗Common follow-up questions
About LG code PE
What does PE mean on a LG washing machines?
PE means “Water-level pressure sensor error.” The control cannot read the expected water-level signal.
Can I clear PE by resetting the appliance?
LG’s current guidance is to unplug the washer for 10 seconds and restart once. A returning PE code is a service boundary, not a reason to keep power-cycling.
Does PE mean the same thing on every LG model?
LG groups PE with E33 as a water-level sensor malfunction on the current front-load guide. Component access is not an owner check and varies by model.
When should I stop troubleshooting PE?
Stop immediately if the water level is unusually high or the washer fills continuously.