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L3

L3 - Inverter instantaneous overcurrent (DC output) (Outdoor Unit)

Daikin · Simple Self Diagnosis by Malfunction Code | Daikin

What does L3 mean?

The inverter has detected a sudden surge of current on its DC output, which could indicate a short circuit or component failure.

Common Causes

  • Internal inverter fault
  • Short circuit in connected components
  • Power supply problem

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the unit's power supply.

  2. 2

    Wait for one minute, then turn the power back on.

  3. 3

    If the error code reappears, contact a qualified technician for inspection.

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

Related Faults

6-06-0 - External protection device activated (Heat reclaim ventilator)6-16-1 - Malfunction of PCB (Heat reclaim ventilator)6-26-2 - Ozone density abnormal (Heat reclaim ventilator)
Source: Simple Self Diagnosis by Malfunction Code | Daikin
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