LG Washer Error Code dHE

If your LG washer is showing the dHE error code, it typically points to a door/handle/lock issue that prevents the machine from detecting a proper door closure. The dHE code often appears on front-load and washer‑dryer combo models when the door handle sensor, latch or interlock does not register a secure lock. You may see the cycle stop or refuse to start, experience incomplete spins, abnormal pauses, or — on combo units — longer drying times because the washer cannot advance through the full program. Aside from inconvenience, a faulty door lock can create safety risks (door opening mid‑cycle, potential water leaks), increase wear on other components, and leave clothes soaked because the spin stage won’t run. Understanding why dHE occurs helps you diagnose whether it’s a simple contact problem or something requiring parts or professional service.

Common causes

  • Door not fully closed or an obstruction caught in the door seal (coins, clothing edges, rags).
  • Faulty door handle or latch mechanism preventing a full catch.
  • Defective door lock / interlock switch (electrical failure in lock assembly).
  • Worn or damaged door hinge or door alignment issues causing poor seal.
  • Loose or damaged wiring harness to the door lock or control board.
  • Main control board or user interface fault not recognizing lock status.
  • Water, corrosion or physical damage to the lock or latch sensors.
  • Firmware or software glitch (less common) causing false error reporting.

Troubleshooting steps

  1. Power reset: Unplug the washer (or switch off breaker) for 1–2 minutes, then restore power — this clears temporary glitches and can reset the lock sensor.
  2. Check the door: Open and close the door firmly. Remove any clothing or debris from the seal and make sure nothing blocks the latch from engaging.
  3. Inspect the door handle and latch: Look for visible cracks, broken plastic, or loose parts. If the handle feels loose or doesn’t fully engage the catch, the latch or handle may need replacing.
  4. Test the lock: On many LG washers you can enter service/diagnostic mode (consult your manual) to test the door lock actuator. If the lock fails to engage during the test, the lock assembly is likely faulty.
  5. Check wiring and connectors: With the washer unplugged, inspect the wiring harness to the door lock for loose connectors, pinched wires, or corrosion. Re-seat connectors if accessible.
  6. Realign or replace hinges/seal if needed: If the door sits unevenly or the gasket is distorted, adjust or replace the hinge or seal so the latch can engage properly.
  7. Run a diagnostic cycle: If available, run a built‑in diagnostic to capture error history and confirm dHE persists after basic checks.
  8. Swap or replace suspect parts: If tests indicate the door lock/handle/latch is bad, replace the assembly with OEM replacement parts. If wiring and lock check good, consider the main control board as the next suspect.
  9. Call support if unsure: If you get stuck, document behavior (when it happens, any audible clicks, lights) and contact LG support or a certified appliance technician to avoid unnecessary part replacement.

Maintenance / Prevention Tips

  • Keep the door seal clean and free of lint, coins, and small items that can block the latch.
  • Always close the door firmly — avoid half‑closing or gentle tucks that can prevent full engagement.
  • Avoid slamming the door; gentle, full closure protects latches and hinges.
  • Do not overload the washer — heavy or unbalanced loads can push against the door during spin and prevent secure locking.
  • Inspect the door handle and latch periodically for wear and replace at the first sign of cracking.
  • Keep the washer area dry to reduce corrosion of the lock mechanism and connectors.
  • Use the correct laundry detergents and amounts to avoid residue buildup in the door area.
  • After each cycle, leave the door slightly ajar to dry the seal and prevent mold that can interfere with sensors.
  • Check and clear the drain/filter regularly to reduce the chance of mid‑cycle interruptions that can stress the lock mechanism.
  • When moving the washer, secure the door and avoid impacts that could bend the hinge or damage the latch.
  • Replace worn door seals (gaskets) to maintain even pressure around the door and proper latch engagement.
  • Have a technician inspect the wiring and control board during routine service visits if you notice recurring electronic errors.
  • Avoid DIY soldering on control boards unless you are trained — improper repairs can cause more errors.
  • Keep firmware/software up to date if LG provides updates for your model.
  • Keep a small flashlight handy to inspect the latch area quickly before starting a load.

FAQs

Q: What exactly does dHE mean on my LG washer?

A: dHE commonly indicates a problem with the door handle, latch, or lock sensor — the washer is not detecting that the door is properly closed and secured.

Q: Can I still run the washer if dHE appears?

A: No. For safety reasons, most LG washers will not start or will pause the cycle if the door is not securely locked. Forcing operation is not recommended.

Q: Is this a quick fix I can do myself?

A: Many causes are simple — clearing an obstruction, reseating the door, or power‑cycling the machine. Replacing a damaged latch or lock is moderately technical but doable for a confident DIYer. If electronics or control board replacement is needed, call a professional.

Q: How much will it cost to fix dHE?

A: Costs vary widely — a replacement door lock assembly is often the least expensive repair, while control board or extensive wiring work costs more. Labor rates depend on region and whether a technician needs to diagnose the problem onsite.

Q: Will a firmware update fix the dHE error?

A: Firmware updates are rare fixes for mechanical lock errors. If the dHE is caused by an electronic glitch, a firmware or software reset may help, but mechanical failures will require part replacement.

Conclusion & Safety Notice

Door-related errors like dHE can often be resolved with careful inspection and simple fixes, but they also involve safety systems that prevent the washer from operating if the door isn’t secure. Always unplug the appliance before inspecting internal components. If the troubleshooting steps above do not clear the error, or if you detect water leaks, damaged wiring, or a malfunctioning lock actuator, stop and contact an authorized LG service technician. Attempting complex electrical repairs without proper training can be dangerous and may void your warranty.

If you’re comfortable with basic repairs, follow manufacturer instructions and use OEM parts. Otherwise, call a certified appliance repair professional to diagnose and address dHE safely and correctly.

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Affected Appliance Models

Model Number
WM3900HWA
WM3500CW
WM3600HWA
WM3700HWA
WM8100HVA
WM9000HVA

Possible Parts That May Cause This Issue

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