HVACopediaFujitsu · Heat pump
9A Expansion valve coil error
What the control is telling you
EEV coil fault. Indoor lamps: OPERATION (green) flashes 9x, TIMER (orange) flashes 10x, ECONOMY (green) flashes fast nonstop; wired remote shows 9A.
Applies to: Fujitsu ductless heat pumps: Fujitsu ductless split/multi/VRF (general code list), Fujitsu slim duct ARU 7-18 (LL type)
Likely causes
- Coil open / unplugged
Test and repair steps
- Check coil plug and resistance; replace coil.
Settings for these units
- Operating range and service space · Fujitsu multi-zone outdoor 18/24 type
Other codes on the same units
- 3A Indoor communication circuit (wired remote) error
- 5U Indoor unit error (general)
- 6A Display PCB micro communication error
- 9U Outdoor unit error (general)
- 11 Serial communication error (indoor/outdoor)
- 12 Wired remote controller communication error
- 14 Network communication error
- 15 Check run unfinished / airflow auto-adjust error
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.
Source: Fujitsu All Fujitsu split - multi - VRF (generic code list) codes.pdf - section error code table (indoor LED flashes); Fujitsu Slim duct AR07-09-12-14-18 (ARU-ARYG LL-type equivalent) installation P-N 9381858064.pdf - section 14 Error codes. 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.