System Error, Refrigerant System Address Undefined - Daikin VRV II-Q RQYQ8-48PY1B Service Manual

SiBE341027

2.42 System Error, Refrigerant System Address Undefined

UH
Remote
Controller
Display
Applicable All models of indoor unit
Models RQYQ-PY1B
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
Causes
Service Diagnosis
Improper connection of transmission wiring between indoor-outdoor units and outdoor-
outdoor units
Defective indoor unit PCB
Defective outdoor unit main PCB
Troubleshooting by Remote Controller
177