Servicing

Fresh air intake - cassette UTZ-VXGA
General Assist Technical Reference UTZ-VXGA Fresh Air Intake Kit Product compatibility, design requirements and installation guidance For selected cas...
Wed, 29 Jul, 2026 at 4:38 PM
AOTG45–60LBTA – Low Noise & Peak Cut Function Setup
AIRSTAGE Technical Reference Low Noise and Peak Cut Functions External inputs, status outputs and outdoor PCB configuration For qualified service tech...
Wed, 5 Aug, 2026 at 2:07 PM
Low Noise & Peak Cut Function Setup – AOTA72LALT / AOTA90LALT
AIRSTAGE Technical Reference Low Noise Mode and Peak Cut Mode External input wiring, function settings and verification Outdoor unit PCB configuration...
Wed, 5 Aug, 2026 at 2:07 PM
KMTC KMTD KMTE INPUT/OUTPUT
AIRSTAGE Technical Reference External Input / Output PCB Model UTY-XCSXZ2 - connection, functions and installation notes The external input/output PC...
Wed, 5 Aug, 2026 at 2:43 PM
KUCA / LUCA gear cracking
Freshdesk-safe version: Paste this code into the Freshdesk HTML/source editor. General Assist Technical Bulletin KUCA / LUCA Intake Grille Gear Crackin...
Thu, 23 Jul, 2026 at 9:57 AM
Thermistor testing
General Assist Technical Reference Thermistor Testing Resistance testing and PCB thermistor-circuit voltage testing For qualified service technicians ...
Thu, 23 Jul, 2026 at 11:49 AM
Cross flow fan noise KMTC
General Air Conditioning | Technical Service Bulletin Crossflow Fan Contact Noise Wall-mounted indoor units – KM and KG series Safety requirement: St...
Tue, 28 Jul, 2026 at 1:52 PM
DC Fan Motor — Checking and Testing Procedure
General Air Conditioning | Technical Service Procedure DC Fan Motor - Checking and Testing Procedure Identification, electrical testing, diode checks a...
Tue, 28 Jul, 2026 at 2:07 PM
KMTC Series — Indoor Fan Motor and Barrel Removal Procedure
General Air Conditioning | Technical Service Procedure KMTC Series — Indoor Fan Motor and Barrel Removal Removal, replacement and reassembly procedure ...
Tue, 28 Jul, 2026 at 2:46 PM
AOTA90LALT AOTA72LALT Input Output
GENERAL | Technical Reference AOTA72LALT / AOTA90LALT External Input & Output Low noise, peak cut, error status, compressor status and base heater ...
Tue, 28 Jul, 2026 at 4:11 PM