Inverter Split AC Indoor Unit PCB Board Suitable for Daikin Inverter AC 1 Ton, 1.5 Ton & 1.8 Ton AC Indoor Control PCB Board Motherboard for Daikin Inverter Split AC (1 Year Warranty)

Step 1 – Turn OFF Power Switch OFF the AC and completely disconnect the main electrical power supply before starting installation. Step 2 – Open the Indoor Unit Remove the indoor unit front cover and electrical/control box cover to access the existing PCB. Step 3 – Take Photographs of Wiring Before disconnecting anything, take clear photographs of all connectors and wiring. This will help ensure correct reconnection. Step 4 – Disconnect the Existing PCB Carefully disconnect all connectors from the old PCB. Do not pull the wires directly; remove connectors from their sockets. Step 5 – Compare the Replacement PCB Compare the new PCB with the original board. Check the PCB part number, connector positions, terminals and component configuration. Step 6 – Install the New PCB Position the replacement PCB correctly and secure it using the original mounting screws/clips. Step 7 – Reconnect the Wiring Connect all connectors to their corresponding sockets according to the PCB markings and original wiring arrangement. Do not rely only on wire colour. Step 8 – Check Everything Inspect all connectors and wires for loose connections, incorrect positioning, damaged insulation or short circuits. Step 9 – Test the AC Restore the power supply and test the AC. Check the indoor fan, temperature sensing, communication, cooling operation and display/error indications. Important: Daikin inverter AC PCBs contain high-voltage electrical circuits. Installation should be performed by a qualified AC technician. Incorrect wiring or installation may damage the PCB and other AC components.