What Does the PE Error Mean?
The LG washer PE error code indicates a water level sensor problem. This means the washer is having difficulty detecting or monitoring the correct water level inside the drum.
In many cases, the washer may stop mid-cycle or fail to fill properly when the control board cannot communicate correctly with the water level pressure sensor.
Common Causes of the LG PE Error
Several issues can trigger the PE error code, including:
- Faulty water level pressure sensor
- Loose or damaged wiring connections
- Blocked or disconnected pressure hose
- Control board communication problems
- Excessive detergent buildup
- Internal sensor malfunction
How To Fix LG Washer PE Error
Follow these troubleshooting steps to help diagnose and fix the PE error code.
1. Disconnect Power
Unplug the washer from the electrical outlet before beginning any inspection or repair.
2. Restart the Washer
Sometimes the error may result from a temporary communication issue.
Allow the washer to remain unplugged for several minutes before restarting.
3. Inspect the Pressure Hose
The pressure hose connects the water level sensor to the washer tub.
Check for:
- kinks
- cracks
- loose connections
- blockages
A damaged or disconnected hose can prevent accurate water level readings.
4. Check Wiring Connections
Inspect wiring connected to the pressure sensor for:
- loose connectors
- corrosion
- damaged wires
5. Reduce Excess Suds
Too much detergent can interfere with water level sensing.
Run a rinse cycle without detergent if excessive suds are present.
6. Test the Washer
Reconnect power and run a short wash cycle to determine whether the error returns.
Persistent PE errors may require replacement of the pressure sensor or professional diagnosis.
How To Reset LG Washer After PE Error
You can often reset the washer using these steps:
- Turn off the washer.
- Unplug the washer from power.
- Wait approximately 5 minutes.
- Plug the washer back in.
- Start a short rinse and spin cycle.
Some LG washer models may use slightly different reset procedures.
Frequently Asked Questions
What does PE mean on an LG washer?
The PE error code usually indicates a water level sensor or pressure sensor problem.
Can a bad pressure sensor cause the PE error?
Yes. A faulty pressure sensor is one of the most common causes of the PE error code.
Can too much detergent trigger the PE error?
Yes. Excessive suds and detergent buildup can interfere with water level detection.
Will unplugging the washer clear the PE error?
Sometimes. However, if the sensor or hose problem remains, the error will likely return.
Is the PE error expensive to repair?
Simple hose or wiring issues may be inexpensive to fix. Replacing the pressure sensor or control board may increase repair costs.