LG WKEX200HBA Washer Door Lock / Latch Switch – What Part Fixes This Problem?
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Understanding the Problem
What this part is and why it matters: The door lock assembly (also called the door latch switch or interlock) physically secures the washer door and contains electrical switches that tell the control board the door is closed and sealed. If the lock fails the washer will refuse to start, show a door-related error (dE, dL or "door"), or lock and not release. Step-by-step diagnostic and repair steps: 1. Confirm the symptom: Does the washer refuse to start, display a door error (dE/dL), or keep the door locked after a cycle? Note whether the machine attempts to lock (you may hear a click) or not. 2. Basic checks: Make sure the door closes fully and the strike/latch on the cabinet isn’t broken or obstructed. Inspect the rubber boot and door strike for damage or foreign objects. 3. Power/reset: Unplug the washer for 1 minute, then plug back in and try a short drain/spin cycle. Some errors clear with a reset. 4. Listen for the lock: Start a cycle and listen for the door lock clicking into place within the first 10–20 seconds. No click suggests the lock isn’t actuating or has no power. 5. Check error codes and diagnostics: If your LG displays an error code, note it. Consult the manual for door-related codes (dE/dL). Enter service mode (if you know how) to observe lock behavior. 6. Visual and wiring inspection: Unplug the washer. Access the lock assembly (usually behind the top or front panel). Inspect the lock housing, connector, and harness for burns, corrosion, or loose pins. 7. Voltage test at the lock (advanced): With washer plugged in and attempting to start, measure for voltage at the lock connector when the machine tries to lock. If there’s voltage but the lock doesn’t actuate, the lock is bad. If no voltage, the control board or wiring is the likely cause. 8. Continuity test (with power off): Disconnect the lock and use a multimeter to check continuity across the lock’s switch terminals per the service manual. No expected continuity when actuated indicates a failed switch. 9. Replace the door lock assembly: If diagnostics point to a bad lock, replace it (see replacement steps below). 10. Re-test the washer: After replacement, run a short cycle to confirm the door locks and machine proceeds normally. Basic replacement (how to fix) — generic front-load style steps: 1. Unplug the washer and shut off water supply. 2. Open the door and remove the outer door trim if required (some models require removing the top or front panel first). For many LG front-load washers you remove the top panel (2–3 screws at the back) or the front panel screws. 3. Locate the door lock assembly at the front of the tub near the hinge side of the door. Remove the retaining screws/clips holding the lock in place. 4. Disconnect the wiring harness from the lock. Note connector orientation or take a photo. 5. Remove the old lock assembly from the tub/frame. 6. Install the new lock: position it the same way, secure with screws, and reconnect the wiring harness. 7. Reassemble panels, restore power and water, and run a test cycle. Safety note: Always unplug the washer before doing continuity tests or opening panels. If you are not comfortable testing live voltage, call a qualified technician.
Common Symptoms
Washer won’t start or accept cycles, door error codes (dE/dL), door won’t lock, door locked indicator blinks, door stuck locked after cycle completes.
Common Causes
- Failed door lock assembly (internal switch or actuator worn)
- Broken or misaligned door strike or door hinges preventing proper closure
- Damaged wiring harness or connector to the lock
- Control board failing to send locking voltage
- Foreign object or damaged door seal preventing latch engagement
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
If you hear no click when starting a cycle but the control board is sending voltage to the lock connector, the lock is faulty — if there is no voltage to the connector the problem is likely the control board or wiring.
Frequently Asked Questions
How can I tell if the door lock is bad or the control board is at fault?
Start by checking for voltage at the lock connector while attempting to start a cycle: if the control board sends the expected voltage but the lock does not actuate, the lock is bad. If there is no voltage, the board or wiring is likely the issue. Also perform a continuity test on the lock with power off — lack of expected continuity when actuated indicates a failed lock. If you’re not comfortable with live-voltage checks, have a technician perform them.
Can I bypass the door lock to run the washer so I can finish my laundry?
Do not bypass the door lock as a permanent fix. The door lock is a safety interlock that prevents operation with the door open. Bypassing can be dangerous and may damage the machine. For brief diagnostic purposes some technicians simulate a closed switch, but this should only be done by someone experienced and with the machine unplugged when wiring is altered. The correct solution is to replace the faulty lock assembly.
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