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Error code reference

LG Air Conditioner Error Code CL

Child lock is active; all keys on wired remote are locked.

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What the CL error code actually means

The CL display on your LG air conditioner means the child lock feature has been turned on, which prevents anyone from changing the settings using the remote control. Your unit is still running normally, just locked in its current settings. To unlock it, press the Timer and Min buttons on the wired remote at the same time.

Diagnostic procedure

The full CL procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Press timer key and Min key simultaneously to toggle child lock off.
More steps, wiring diagram references, and verified part numbers
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Most common causes of CL

Ranked by how often they cause this code
  1. 1Child lock accidentally activated
  2. 2Child lock intentionally set by another user
  3. 3Remote control button stuck or jammed
  4. 4Power interruption during operation

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Questions people ask about CL

What does CL mean on a LG air_conditioner?
CL on an LG air conditioner means the child lock feature is active on the wired remote controller. All key inputs on the remote are disabled while this mode is on, but the unit continues operating normally. It is not an error or fault code and does not indicate any mechanical or electrical problem. Press the Timer and Min keys together to turn the child lock off.
Is the CL code on my LG air conditioner a safety concern?
No, CL is not a safety-related fault code. It simply means the remote keypad is locked to prevent unintended changes. The air conditioner continues to run normally and all internal systems are functioning. You can disable the lock at any time using the Timer and Min key combination.
How much does it cost to fix the CL code on an LG air conditioner?
In almost all cases, there is no cost involved since the CL code is cleared by pressing two buttons on the existing wired remote. If the remote controller is physically damaged and the keys cannot function properly, replacing a wired remote controller typically costs in the range of $30 to $80 depending on the model. No service call should be necessary for this code alone.
How do I fix the CL code on my LG air conditioner?
Press the Timer key and the Min key on the wired remote controller at the same time to toggle the child lock off. The CL indicator should disappear and full key control will be restored immediately. No tools, reset procedures, or service technician is needed for this.
Will resetting my LG air conditioner clear the CL code?
A power reset may or may not clear the child lock depending on the unit's saved state. The correct and reliable method is to press the Timer and Min keys simultaneously on the wired remote, which directly toggles the child lock function off. Relying on a power reset is not the recommended approach for this code.

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