CodeRegistry
Brands
  1. Home
  2. Haier
  3. Air Conditioners
  4. F6
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.

F6

F6 / Outdoor LED1 flashes 12 times — Abnormal of outdoor ambient sensor

Haier · Air Conditioners

What does F6 mean?

The sensor that measures the outside air temperature is malfunctioning, which can impact the unit's ability to adjust its operation based on external conditions.

Common Causes

  • Outdoor ambient sensor failure
  • Outdoor PCB 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

    Ensure the outdoor sensor area is not covered or obstructed by debris.

  4. 4

    If the error persists, 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