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H8

H8 - Malfunction of outdoor unit fan motor signal (Outdoor Unit)

Daikin · Simple Self Diagnosis by Malfunction Code | Daikin

What does H8 mean?

The outdoor unit's fan motor is not receiving the correct signal or is not operating as expected.

Common Causes

  • Faulty fan motor
  • Wiring issue
  • Control board problem

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the power to the unit.

  2. 2

    Check for obstructions around the fan.

  3. 3

    Restore power and see if the error clears.

  4. 4

    If the error persists, contact a qualified technician.

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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