LG Dishwasher Error PE
⚡ Quick Answer: The LG dishwasher PE error indicates a pressure or water level sensor issue, often preventing proper drainage and causing the unit to display this err... ✅ DIY Fixable
What Does Error PE Mean?
The LG dishwasher PE error indicates a pressure or water level sensor issue, often preventing proper drainage and causing the unit to display this error message. Symptoms include the PE code on the control panel, continuous running attempts to drain, and cycles that may not advance as expected. Common causes are a faulty pressure sensor or a blocked pressure hose.
Common Symptoms:
- Dishwasher displays PE on control panel
- Dishwasher may run continuously or attempt to drain repeatedly
- Cycle may not advance or start normally
Possible Causes
- Faulty or malfunctioning pressure/water level sensor (medium)
- Blocked pressure hose or misalignment of sensor (medium)
How to Fix Error PE
DIY Fix Basic checks and resets
- Turn off and disconnect power to the dishwasher for several minutes, then reconnect to see if error clears
- Ensure dishwasher is correctly installed and level
- Check for obvious water supply or drainage obstructions
Technician Only Inspect and test pressure/water level sensor and related components
- Access the pressure sensor and its hose beneath the unit
- Inspect pressure hose for blockages, kinks, or disconnection
- Test pressure sensor continuity and alignment; replace if defective
- Verify wiring connections between sensor and main control board
Parts needed: Pressure/water level sensor, Pressure hose, Sensor wiring harness
- Error persists after basic reset and visual checks
- Dishwasher continues to display PE and does not run cycles normally
- Pressure sensor component testing indicates failure
Next step
Choose the next step for PE
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Pressure Switch
Detects the water level inside the tub and signals when to start or stop filling.
- Typical part-only price
- $25 - $65
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
Common Questions
What does PE error mean on LG dishwasher?
The PE error indicates a pressure or water level sensor issue, leading to drainage problems.
Can I fix LG dishwasher PE error myself?
Yes, you can perform basic checks like resetting the appliance and ensuring proper installation and drainage.
How much does it cost to fix PE error?
Repair costs range from $50 to $200+, depending on parts and labor needed.
When should I call a technician for PE?
Call a technician if the error persists after basic checks or if sensor testing indicates failure.
Sources & References
Data last verified: 2026-07-31
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