Troubleshooting For Wall Mounted/Floor Standing Type; Indoor Unit Pcb Abnormality - Daikin 2MXS-W Series Service Manual

Troubleshooting for Wall Mounted/Floor Standing Type

5. Troubleshooting for Wall Mounted/Floor Standing
Type
5.1

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
158
SiUS122226EA
Part 6 Service Diagnosis