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L0

L0 - Inverter system failure

Daikin · Air Conditioning

What does L0 mean?

There is a failure within the inverter system of the air conditioner.

Common Causes

  • Defect of the power transistor.
  • Inverter PCB defect.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the unit at the main breaker for 60 seconds, then restore power.

  2. 2

    If the error persists, the inverter system components may be faulty.

  3. 3

    Professional diagnosis and repair by a technician are required.

Browse all codes in this manual (79)
Verified technical data. Last updated: April 2026

Related Faults

A0A0 - External protection activeA1A1 - Indoor PCB failureA2A2 - Malfunction of freezing protection
Source: Daikin Air Conditioning
Open Manual (Page 2)Search more codes in this manual