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Overload activation (compressor overload)

Overload activation (compressor overload) — Compressor protection activated

Daikin · room air conditioner

What does Overload activation (compressor overload) mean?

This indicates that the compressor has been overloaded and has shut down to protect itself. This is often caused by operating conditions that put too much strain on the compressor.

Common Causes

  • Dirty air filters or blocked airflow
  • Low refrigerant levels
  • Voltage supply issues
  • Extremely high outdoor temperatures

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check and clean the air filters in the indoor unit.

  2. 2

    Ensure there are no obstructions to airflow around the indoor and outdoor units.

  3. 3

    Turn off the air conditioner, wait 5 minutes, and then turn it back on.

  4. 4

    If the problem recurs frequently, contact a qualified installer.

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
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