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E508

E508 — Smart install mode was not carried out

Samsung · Air Conditioning

What does E508 mean?

This error indicates that the 'installation smart install mode' was not successfully completed after the air conditioner installation. The unit will not work until this mode is completed successfully. This is not a malfunction but an indication of an incomplete setup.

Common Causes

  • Installation smart install mode was not run after installation.
  • The installation smart install mode was interrupted (e.g., by pressing the K3 switch).
  • An error occurred during the smart install mode operation which prevented completion.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the installation smart install mode is run after air conditioner installation.

  2. 2

    Avoid pressing the K3 switch during the smart install mode operation, as this will interrupt it.

  3. 3

    If the mode was interrupted or an error occurred, resolve any underlying issues and then run the installation smart install mode again.

  4. 4

    If the mode completed successfully but you need to rerun it, press the K1 and K4 switches for 5 seconds.

  5. 5

    If the unit still doesn't work after resolving issues, ensure the smart install mode completes successfully.

Browse all codes in this manual (94)
Verified technical data. Last updated: April 2026

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Source: Samsung Air Conditioning
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