System Abnormality, Refrigerant System Address Undefined - Daikin RXQ12AHR Service Manual

SiAF341904E
5.60 System Abnormality, Refrigerant System Address
Undefined
Applicable All indoor unit models
All outdoor unit models
Models
UH
Error Code
Method of Error Detect an indoor unit with no auto address setting.
Detection
Error Decision
The error decision is made as soon as the abnormality aforementioned is detected.
Conditions
Supposed  Improper connection of transmission wiring between indoor-outdoor units and outdoor-
Causes
 Defective indoor unit PCB
 Defective outdoor unit main PCB
Part 6 Service Diagnosis
outdoor units
Troubleshooting by Error Code
285