LG Dishwasher Error Code DE: How to Fix It
Medium 30-45 minutes Medium Severity
Verified June 2026
- Error Code
- DE
- Brand
- LG
- Product Type
- dishwasher
- Severity
- Medium
- DIY Difficulty
- Medium
- Estimated Fix Time
- 30-45 minutes
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Tools You'll Need
- Phillips screwdriver
- Flathead screwdriver
- Toothbrush
- Clean cloth
- Mild detergent
How to Fix Error Code DE
-
Turn Off and Unplug Dishwasher
Always disconnect power before performing any maintenance to prevent electrical shock. -
Check Door Closure
-
Inspect Door Seals and Gaskets
-
Test Door Latch Mechanism
-
Clean Latch Components
-
Check Door Switch Operation
-
Test Electrical Connections
Do not attempt to repair damaged electrical connections yourself - contact a qualified technician. -
Reset and Test Dishwasher
Parts You May Need
Door latch assembly
Check Price on Amazon
Door switch
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Door seal gasket
Check Price on Amazon
Door latch assembly
Check Price on Amazon
Door switch
Check Price on Amazon
Door seal gasket
Check Price on Amazon
Door latch assembly
Check Price on Amazon
Door switch
Check Price on Amazon
Door seal gasket
Check Price on Amazon
Door latch assembly
Check Price on Amazon
Door switch
Check Price on Amazon
Door seal gasket
Check Price on Amazon
Door latch assembly
Check Price on Amazon
Door switch
Check Price on Amazon
Door seal gasket
Check Price on Amazon
Door latch assembly
Check Price on Amazon
Door switch
Check Price on Amazon
Door seal gasket
Check Price on Amazon
Door latch assembly
Check Price on Amazon
Door switch
Check Price on Amazon
Door seal gasket
Check Price on Amazon
Door latch assembly
Check Price on Amazon
Door switch
Check Price on Amazon
Door seal gasket
Check Price on Amazon
Door latch assembly
Check Price on Amazon
Door switch
Check Price on Amazon
Door seal gasket
Check Price on Amazon
Door latch assembly
Check Price on Amazon
Door switch
Check Price on Amazon
Door seal gasket
Check Price on Amazon
Door latch assembly
Check Price on Amazon
Door switch
Check Price on Amazon
Door seal gasket
Check Price on Amazon
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When to Call a Professional
Contact a qualified appliance technician if the door latch mechanism is broken, electrical connections are damaged, or the error persists after following all troubleshooting steps. Professional repair is also recommended if you're uncomfortable working with electrical components.Frequently Asked Questions
Why does my LG dishwasher show DE error code during the cycle?
The DE error code appears when the dishwasher detects the door has opened during operation or when there's a malfunction with the door latch or switch mechanism. This is a safety feature to prevent water spillage and ensure proper cleaning.
Can I continue using my dishwasher with DE error code?
No, you should not continue using your dishwasher when the DE error appears. This error indicates a safety issue that could result in water leakage or poor cleaning performance. Address the door latch problem before running any cycles.
How much does it cost to fix LG dishwasher error code DE?
If you can fix it yourself by cleaning the latch mechanism, the cost is minimal. Professional repair typically ranges from $100-250 depending on whether you need a new door latch assembly, switch replacement, or control board repair.
How do I reset my LG dishwasher after fixing the DE error?
After fixing the door latch issue, press and hold the power button for 5 seconds to turn off the dishwasher, then turn it back on. The error code should clear automatically if the door mechanism is functioning properly.
What causes LG dishwasher door latch to malfunction?
Common causes include food debris or soap buildup in the latch mechanism, worn door seals affecting closure, mechanical wear of the latch components, or electrical issues with the door switch. Regular cleaning and maintenance can prevent most problems.