CodeRegistry
Brands
  1. Home
  2. Haier
  3. Air Conditioners
  4. F9
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

F9

F9 / Outdoor LED1 flashes 26 times — Module reset

Haier · Air Conditioners

What does F9 mean?

The power module has undergone an unexpected reset, indicating an internal issue within its operation or power supply.

Common Causes

  • Power module issue
  • Outdoor PCB issue
  • Compressor issue

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the air conditioner at the main power switch or circuit breaker.

  2. 2

    Wait for at least 30 seconds, then turn the power back on.

  3. 3

    Monitor the unit's operation after the restart.

  4. 4

    If the resets continue, contact a qualified technician.

Browse all codes in this manual (48)
Verified technical data. Last updated: April 2026

Related Faults

CL displayCL displayed on panel & remote — Self-Clean operation activatedE1E1 — Indoor temperature sensor failureE14E14 — Indoor fan failure
Source: Haier Air Conditioners
Open Manual (Page 149)Search more codes in this manual