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Error code

Error code displayed — Unit malfunction detected

LG · Air Conditioning

What does Error code mean?

The air conditioner has detected an error through its self-diagnosis function and is displaying an error code. This indicates a specific issue that needs to be addressed.

Common Causes

  • The unit generates an error code from its self-diagnosis.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the air conditioner and disconnect the power supply.

  2. 2

    Contact your local dealer or service center with the specific error code.

Browse all codes in this manual (97)
Verified technical data. Last updated: April 2026

Related Faults

01Error 01 - Indoor air sensor open or short circuit02Error 02 - Inlet pipe sensor open or short circuit03Error 03 - Communication error between indoor unit and wired remote
Source: LG Air Conditioning
Open Manual (Page 31)Search more codes in this manual