HVACopedia

Kinghome · Heat pump

AJ Outdoor fan out-of-step

High severity Kinghome Ultranixx Eco

What the control is telling you

Fan rotor position lost.

Applies to: Kinghome Ultranixx Eco KD24UHO to KD60UHO outdoor units with KD..UHI air handlers

Likely causes

  • Wire problem
  • Blocked system
  • Failed fan or drive

Test and repair steps

  1. Check wiring.
  2. Replace fan or drive.

Models that show this code

12 models in Kinghome Ultranixx Eco

KD24UHIKD24UHOKD30UHIKD30UHOKD36UHIKD36UHOKD42UHIKD42UHOKD48UHIKD48UHOKD60UHIKD60UHO

Other codes on the same units

  • P7 Module temperature sensor circuit fault
  • AC Outdoor fan startup failure
  • AE Outdoor fan current detection error
  • EE Memory chip fault
  • HC PFC protection
  • LC Compressor start failure
  • PA AC current protection
  • PH DC bus voltage high

Save it for the next call

Star this code in the HVACopedia app and keep the whole library on your phone for jobs with no signal.

Open the app

Source: Kinghome Ultranixx Eco KD24-60UHO service manual, sec. 3.3-3.4. Summarized in our own words; check the original manual for your model.

Homeowner looking at this code? See what it means for you and when to call a technician.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.