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switch or button fails

Switch or button fails to work properly — Control issue

Daikin · Air Conditioner

What does switch or button fails mean?

A control button or switch on the unit or remote control is not functioning as expected. This can make it difficult to operate the unit.

Common Causes

  • Faulty button or switch
  • Internal control board issue
  • Remote control malfunction

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Try operating the unit using the alternative control (remote or unit switch).

  2. 2

    Check the batteries in the remote control if applicable.

  3. 3

    If the issue persists, contact your dealer for service.

Browse all codes in this manual (40)
Verified technical data. Last updated: April 2026

Related Faults

0000 — Normal operationA1A1 — Indoor unit PCB defect detectedA5A5 — High pressure or freeze-up protector activated
Source: Daikin Air Conditioner
Open Manual (Page 30)Search more codes in this manual