Servicing
General Assist Technical Reference Serial Communication Voltage Test Terminal 2 (Neutral) to Terminal 3 (Signal) This test confirms whether the DC se...
Wed, 2 Sep, 2026 at 1:01 PM
Outdoor Communication Fault - Isolating PCB vs Connected Components This article provides a structured method for diagnosing an outdoor communication fa...
Wed, 2 Sep, 2026 at 1:02 PM
Electrical Testing - Diode Bridge / Rectifier and DC Brushless Fan Motors This article provides a quick-reference procedure for testing diode bridge / rec...
Wed, 2 Sep, 2026 at 1:02 PM
Wired Remote Signal Test - Y1 / Y2 / Y3 This procedure checks the remote controller supply voltage and communication signal integrity on systems using Y1,...
Wed, 2 Sep, 2026 at 1:16 PM
DC Fan Motor Testing - Supply, Control and Diode Checks This article provides a two-stage test procedure for DC fan motors: a live supply and control volt...
Wed, 2 Sep, 2026 at 1:19 PM
Indoor Unit Fan Behaviour During Thermo-Off - RAC-0131 This article summarises Service Bulletin RAC-0131, issued 2 September 2026, covering changes to i...
Wed, 2 Sep, 2026 at 1:27 PM