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Outdoor unit PCB abnormality

Outdoor unit PCB abnormality — Outdoor control board issue

Daikin · room air conditioner

What does Outdoor unit PCB abnormality mean?

This error indicates a problem with the main electronic control board (PCB) located in the outdoor unit. This board manages the outdoor unit's operations.

Common Causes

  • Failure of a component on the outdoor unit's PCB
  • Damage from power fluctuations
  • Environmental factors affecting the board

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the power to the outdoor unit is switched off.

  2. 2

    Check the main power supply and circuit breaker for the outdoor unit.

  3. 3

    Restore power and observe if the error code clears.

  4. 4

    If the error persists, contact a qualified installer or dealer for inspection and repair.

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

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Source: Daikin room air conditioner
Open Manual (Page 20)Search more codes in this manual