Servicing
GENERAL AIRSTAGE TECHNICAL GUIDE Refrigerant Leakage Sensor Installation cautions, false detection risks and troubleshooting flow charts Applies to:...
Wed, 15 Jul, 2026 at 1:21 PM
GENERAL AIRSTAGE TECHNICAL GUIDE ARTH External Input Fire Shutdown Using indoor-unit terminals 1 and 2 for simultaneous forced stop Purpose: To shut...
Wed, 15 Jul, 2026 at 2:17 PM
General Assist Technical Troubleshooting Outdoor Unit Starts, Stops and Repeats ARTG45LHTA ducted system Compressor operates for approximately one min...
Thu, 23 Jul, 2026 at 7:59 AM
General Assist Technical Reference Test Run Procedure AOTC72LALT / AOTC90LALT with ARTC72LATU / ARTC90LATU Outdoor PCB test operation, pre-start check...
Thu, 23 Jul, 2026 at 12:32 PM
General Assist Technical Reference Outdoor Fan Control AOTA72LALT and AOTA90LALT How the outdoor fan speed is controlled in cooling, dry and heating o...
Wed, 29 Jul, 2026 at 4:15 PM
General Assist Technical Reference Compressor Control AOTA72LALT and AOTA90LALT operation speed and start-up control How the inverter compressor chang...
Wed, 29 Jul, 2026 at 4:20 PM
General Assist Technical Reference Multi-Split Wiring Correction Check How to identify and correct crossed indoor-unit communication wiring Applicable...
Thu, 30 Jul, 2026 at 9:21 AM
General Assist Technical Reference High Wall Split System - Error Memory How to retrieve the last recorded fault from the indoor unit Applicable to co...
Thu, 30 Jul, 2026 at 3:22 PM
General Assist Technical Reference ARTG LHTA Ducted Models – Return Air Sensor Offset Adjusting the cooling and heating room-temperature correction by f...
Tue, 4 Aug, 2026 at 11:43 AM
General Assist Spare Parts Reference Floor ceiling Drain Hose Assembly Correct replacement part number and pricing options For the Fujitsu heat pump ...
Wed, 5 Aug, 2026 at 11:45 AM