LG Washing Machine Error Code PE Water Level Sensor Fault: What You Need to Know
- RePair Team
- Mar 4
- 4 min read
If you’ve ever been in the middle of a laundry load and suddenly your LG washing machine flashes the error code PE, you might feel a bit stuck. This error points to a water level sensor fault, which can stop your machine from working properly. But don’t worry - I’m here to guide you through understanding what this error means, why it happens, and how you can fix it quickly and safely.
Understanding the LG Washing Machine Error Code PE
The PE error code on your LG washing machine stands for Pressure Error. This means the machine is having trouble reading the water level inside the drum. The water level sensor, also called the pressure sensor or pressure switch, tells the machine how much water is in the tub. If this sensor is faulty or blocked, the machine won’t fill or drain correctly.
When the sensor fails, the washing machine might:
Stop mid-cycle
Not fill with water
Display the PE error code on the screen
This error is a safety feature to prevent damage to your machine or clothes.

Common Causes of the PE Water Level Sensor Fault
There are several reasons why your LG washing machine might show the PE error. Knowing these can help you troubleshoot or explain the problem to a repair technician.
Blocked or Damaged Pressure Hose
The pressure sensor connects to the tub via a small hose. If this hose is clogged with dirt, detergent residue, or damaged, the sensor can’t read the water level correctly.
Faulty Water Level Sensor
Sometimes the sensor itself is defective or worn out. This can happen over time or due to electrical issues.
Electrical Connection Problems
Loose or corroded wiring between the sensor and the control board can cause communication errors.
Control Board Issues
In rare cases, the main control board might be malfunctioning and misreading the sensor signals.
Overloading the Machine
Putting too many clothes in the drum can affect water levels and sensor readings.
Understanding these causes helps you decide whether you can fix the problem yourself or if you need professional help.
How to Fix the PE Error Code on Your LG Washing Machine
If you want to try fixing the PE error yourself, here are some clear, step-by-step instructions. Remember to always unplug your washing machine before starting any repairs to stay safe.
Step 1: Check the Pressure Hose
Locate the pressure hose inside your washing machine. It’s usually a small, clear tube connected to the water level sensor.
Inspect the hose for any kinks, blockages, or damage.
If blocked, gently clean the hose with warm water and a soft brush.
Reattach the hose securely.
Step 2: Inspect the Water Level Sensor
The sensor is often located near the pressure hose connection.
Look for signs of damage or corrosion.
If you have a multimeter, you can test the sensor’s electrical resistance to check if it’s working properly.
Replace the sensor if it’s faulty.
Step 3: Examine Electrical Connections
Check the wiring harness connected to the sensor.
Make sure all plugs are tight and free from corrosion.
Clean any dirty connectors with electrical contact cleaner.
Step 4: Reset the Washing Machine
After checking and fixing the above, plug the machine back in.
Run a diagnostic or reset cycle to clear the error code.
See if the PE error returns during operation.
If the error persists after these steps, it’s best to call a professional repair service.

When to Call a Professional Repair Service
While some fixes are straightforward, the PE error can sometimes indicate a more complex problem. If you’re not comfortable opening your washing machine or if the error continues after your attempts, it’s wise to get expert help.
Professional technicians have the right tools and experience to:
Accurately diagnose sensor and control board issues
Replace faulty parts safely
Ensure your washing machine runs smoothly again
For homeowners and businesses needing appliance repair, quick and reliable service is essential. The RePair Team offers affordable, on-site repairs with guaranteed workmanship. They aim to fix most issues during the first visit, saving you time and hassle.
Tips to Prevent the PE Error in the Future
Prevention is always better than repair. Here are some simple tips to keep your LG washing machine running without the PE error:
Avoid Overloading: Follow the recommended load size for your model.
Use the Right Detergent: Excessive suds can clog sensors and hoses.
Regular Cleaning: Clean the pressure hose and sensor area every few months.
Check Water Supply: Ensure your water pressure is stable and pipes are clear.
Schedule Routine Maintenance: Have a professional inspect your machine yearly.
By following these tips, you can reduce the chances of sensor faults and keep your laundry routine smooth.
Getting the Most from Your Washing Machine Repairs
When you need repairs, choosing a service that values your time and satisfaction makes all the difference. Look for repair teams that:
Offer transparent pricing
Use genuine parts
Provide clear explanations of the problem and solution
Guarantee their workmanship
This approach ensures your washing machine is fixed right the first time and lasts longer.
If you want to learn more about common LG washing machine errors and how to handle them, check out this helpful resource: LG Washing Machine Error Codes Explained.
I hope this guide helps you understand and tackle the LG washing machine error code PE with confidence. Remember, a little troubleshooting can go a long way, but professional help is always available when you need it. Happy washing!
