LG WM4000HWA Washer: CL Error Code Troubleshooting -... | appliancefaults.com

Technical Background:

The 'CL' error indicates that the Child Lock feature is engaged. This feature disables most of the control panel buttons to prevent children from accidentally starting or changing the wash cycle. The MCU monitors the state of the Child Lock button and activates/deactivates the lock accordingly. Voltage signals from the button are interpreted by the MCU to toggle the lock. A malfunction in the button, wiring, or MCU can trigger the error.

Symptoms:

The LG WM4000HWA washing machine is beeping and displaying the 'CL' error code on the control panel. The control panel is unresponsive to most commands, indicating that the Child Lock feature is active or the machine thinks the feature is active.

Possible Causes:

Accidental activation of the Child Lock feature.
Control panel malfunction causing false lock engagement.
Software glitch in the main control unit (MCU).
Stuck or faulty button on the control panel.
Power surge affecting the control panel electronics.

Solution:

1

Attempt to deactivate the Child Lock: Press and hold the Child Lock button (often labeled with a padlock icon) for 3-5 seconds. Listen for a deactivation beep. Refer to the user manual for the exact button combination.
2

Power Cycle the Washer: Unplug the washer from the wall outlet for 5 minutes. This resets the MCU and clears temporary errors.
3

Inspect the Control Panel Buttons: Check for any stuck or damaged buttons. Clean around the buttons with a soft, dry cloth. Avoid using liquids.
4

Check the Wiring Harness to the Control Panel: Turn off the breaker to the washer. Remove the top panel (usually secured with screws in the back). Inspect the wiring harness connecting to the control panel for loose connections or damage.
5

Measure Voltage to the Control Panel: Use a multimeter to check for proper voltage (typically 120V AC) at the control panel connector. If voltage is absent, trace the wiring back to the power supply.
6

Replace the Control Panel: If the error persists and other solutions fail, the control panel may be faulty and require replacement. Order the correct replacement part from a reputable appliance parts supplier.
7

Replace the Main Control Board (MCU): As a last resort, if the issue still persists replace the MCU. This should be done by a trained licensed technician.

Safety Warning:

Always disconnect power to the appliance by switching off the breaker at the breaker panel before performing any repairs or inspections. High voltage is present inside the machine and can cause serious injury or death. Lock Out/Tag Out (LOTO) procedures should always be followed.

Prevention:

Periodically clean the control panel to prevent button stickiness. Avoid pressing the buttons with excessive force. Consider using a surge protector to safeguard the washer's electronics from power surges.

Expert Tip:

Service Mode: Some LG washers have a service mode. To enter, simultaneously press and hold the 'Temp' and 'Spin' buttons, then press the 'Power' button. This may allow you to clear the error code or diagnose other issues. Note: This procedure varies by model and is for qualified technicians only.

Frequently Asked Questions

•How do I find the correct replacement control panel for my LG WM4000HWA washer?

Locate the model and serial number on the washer. Use this information to search for the correct replacement part on a reputable appliance parts website, such as AppliancePartsPros or RepairClinic. You can also contact LG directly.

•What tools do I need to replace the control panel?

You will need a Phillips head screwdriver, a flathead screwdriver (for prying if needed), a 1/4-inch nut driver, and a multimeter for testing voltage. Gloves and safety glasses are also recommended.

•How can I prevent the Child Lock from being accidentally activated again?

Be mindful of where you place items near the control panel. Avoid placing anything that could press the Child Lock button. Also, educate household members about the Child Lock feature and how to disable it.

LG WM4000HWA Washer: CL Error Code Troubleshooting - Child Lock Deactivation

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I find the correct replacement control panel for my LG WM4000HWA washer?

•What tools do I need to replace the control panel?

•How can I prevent the Child Lock from being accidentally activated again?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: