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ON/OFF timer does not operate correctly

ON/OFF timer does not operate correctly — Timer settings inaccurate

Daikin · room air conditioner

What does ON/OFF timer does not operate correctly mean?

The timer functions (ON/OFF timer, weekly timer) are not starting or stopping the unit as programmed. This is often due to incorrect clock or timer settings.

Common Causes

  • Timer settings conflict
  • Incorrect clock time or day of the week
  • Timer function not activated

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the Weekly timer and ON/OFF timer are not set for the same time; adjust or deactivate one.

  2. 2

    Verify that the clock and the current day of the week are set correctly on the user interface.

  3. 3

    Refer to the timer operation sections in the manual for correct programming.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

4-way valve abnormality4-way valve abnormality — Refrigerant flow control issueA clapping sound is heardA clapping sound is heard — External device interferingAbnormal function during operation (lightning/radio waves)Abnormal function during operation — Interference suspected
Source: Daikin room air conditioner
Open Manual (Page 19)Search more codes in this manual