Servicing
General Assist Technical Reference LJBYL Outdoor Unit Filter PCB reactor-coil overheating caused by incorrect wiring Inspection and corrective-action ...
Wed, 29 Jul, 2026 at 8:46 AM
General Assist Technical Reference Multi Head Systems Not Cooling AOTG36LBTA4 / AOTG30LBTA4 EEV control and outdoor PCB diagnosis Field diagnostic gui...
Wed, 29 Jul, 2026 at 8:53 AM
General Assist Technical Reference Error 63.1 - Inverter Current Trip Diagnosis of inverter overcurrent faults during compressor start-up or operation ...
Wed, 29 Jul, 2026 at 8:52 AM
General Assist Technical Procedure R32 Ducted Inverter PCB Access Safe access to the outdoor main PCB, electrical module and inverter PCB assembly For...
Wed, 29 Jul, 2026 at 9:11 AM
General Assist Technical Reference AOTA72LALT and AOTA90LALT Outdoor Functions Monitoring, function settings, service functions and error-history acces...
Wed, 29 Jul, 2026 at 9:32 AM
AIRSTAGE VRF Technical Reference Keycard Interlock Function Energy-saving room control for hotels, accommodation and intermittently occupied spaces Ov...
Fri, 7 Aug, 2026 at 4:41 PM
AIRSTAGE Technical Reference Electronic Control Components Functions, operating voltages and inverter-system power flow Reference guide for key indoor...
Wed, 5 Aug, 2026 at 1:46 PM
AIRSTAGE Technical Reference Thermistor Testing and Diagnostics Voltage, resistance and temperature correlation checks For service technicians diagnos...
Wed, 5 Aug, 2026 at 2:16 PM
General Assist Technical Reference Electronic Expansion Valve (EEV) Coil Testing Resistance checks for 5-wire, 6-wire and J-Series 12 V EEV coils Tech...
Wed, 5 Aug, 2026 at 1:40 PM
AIRSTAGE Technical Reference Pressure Transducer Sensor Testing Live voltage, diode testing and fault diagnosis For outdoor-unit refrigerant pressure ...
Wed, 5 Aug, 2026 at 2:18 PM