Servicing
PFC PCB Software Error – Error Code 19 / 33 Outdoor unit PFC board software identification and replacement guidance Quick Answer If the PFC PCB softwa...
Tue, 1 Sep, 2026 at 10:57 AM
General Assist Technical Reference R32 Multi System System overview and technical reference Multi-type air conditioning system for two to five indoor ...
Tue, 1 Sep, 2026 at 10:53 AM
General Assist Technical Reference Fan Speed Controller Installation, wiring and Danfoss condenser fan control setup For systems using a fan speed con...
Tue, 1 Sep, 2026 at 10:57 AM
General Assist Technical Reference Thermistors - Quick Test Procedure Resistance and DC supply checks Field diagnosis of two-pin NTC thermistors used ...
Tue, 1 Sep, 2026 at 3:23 PM
General Assist Technical Reference EEV Diagnostic Testing Coil resistance, PCB DC supply and mechanical valve-body checks For split and VRF systems us...
Tue, 1 Sep, 2026 at 3:28 PM
General Assist Technical Training PSAC Standard Inverter Control Technician training - control logic, protection functions and service diagnostics Fie...
Tue, 1 Sep, 2026 at 3:30 PM
General Assist Technical Reference Cassette Indoor Unit Operation, Controls & Troubleshooting Field guide to operating logic, drain and defrost con...
Tue, 1 Sep, 2026 at 3:33 PM
General Assist Technical Reference Legacy Multi-Type Wall-Mounted Inverter Systems System operation, control logic, protections and service diagnostics...
Tue, 1 Sep, 2026 at 3:30 PM
General Assist Technical Reference ARTC72LATU / ARTC90LATU Indoor PCB Software Update Software identification, affected serial ranges and required acti...
Tue, 1 Sep, 2026 at 11:13 AM
General Assist Technical Reference PMAL Standard Inverter Control Field guide to control logic, protections, commissioning and troubleshooting For wal...
Tue, 1 Sep, 2026 at 3:34 PM