Indoor Unit Pcb Abnormality - Daikin FTXR-T Series Service Manual

SiUS041829E
4.2

Indoor Unit PCB Abnormality

A1
Error Code
Method of Error
The system checks if the circuit works properly within the microcomputer of the indoor unit.
Detection
Error Decision The system cannot set the internal settings.
Conditions
Supposed  Wrong models interconnected
Causes  Defective indoor unit PCB
 Disconnection of connector
 Reduction of power supply voltage
Part 6 Service Diagnosis
Troubleshooting
71