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LG·washerhigh severity
LG Error Code PE
Pressure sensor error
Common Causes
- 1Pressure switch failure
- 2Hose issue
Step-by-Step Troubleshooting
- 1
Access the pressure sensor (water level sensor) — on LG front-loaders it is mounted on the top of the cabinet near the rear wall
- 2
Check the small rubber air hose running from the outer tub to the pressure sensor — disconnect and blow gently through it to confirm it is clear
- 3
Look for cracks, splits, or detachment at either end of the pressure hose — detergent residue can harden and block the hose over time
- 4
Test the pressure sensor electrically — LG frequency-based sensors should output a varying frequency when air pressure is applied to the hose port
- 5
If the sensor and hose test OK, check the main board connector for the pressure sensor input — corrosion or loose pins will give intermittent PE codes
Pro Diagnostic Tip
The LG pressure transducer outputs a frequency between 21-28 kHz depending on water level. If you have an oscilloscope or frequency counter, you can verify the transducer output in real-time. A flat-line output regardless of water level confirms transducer failure vs. a hose issue.
You Might Also Notice
- •Washer not filling to correct level
- •Overfilling or underfilling
- •Cycle stopping during fill phase
- •Display showing incorrect water level
Parts, Cost & Difficulty
Repair Difficulty
Hard — Advanced Skills RequiredEstimated Repair Cost
$140–$260
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
6501EA1001R (Pressure Sensor)AEM69493802 (Pressure Hose)EBR84433503 (Main Board — if sensor circuit failed)
Do You Have the Right Tools?
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $15K+ in professional tools — your diagnostic is free.
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High-voltage components and pressurized water lines create flood and shock risk. A single loose fitting can cause thousands in water damage. Our techs are licensed and insured — let them handle the risk.
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Error code PE is a high-severity issue that can cause further damage to your washer if left unresolved. A licensed technician can diagnose and fix it the same day.
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Frequently Asked Questions
What does LG error code PE mean?
LG error code PE indicates: Pressure sensor error. This is a high-severity issue affecting your washer.
How do I fix LG error code PE?
Access the pressure sensor (water level sensor) — on LG front-loaders it is mounted on the top of the cabinet near the rear wall Then, Check the small rubber air hose running from the outer tub to the pressure sensor — disconnect and blow gently through it to confirm it is clear Then, Look for cracks, splits, or detachment at either end of the pressure hose — detergent residue can harden and block the hose over time There are 2 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my washer has error PE?
Besides the error code on the display, common signs include: Washer not filling to correct level; Overfilling or underfilling; Cycle stopping during fill phase. If you notice any of these symptoms, check your washer's display panel for error code PE.
How much does it cost to fix LG PE?
Repair costs for LG PE typically range from $140 to $260 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.