Ua " Improper Combination Of Indoor, Bs And Outdoor Units, Indoor Units And Remote Controller - Daikin RQYQ140-180PY1 Service Manual

SiBE341001
UA
2.37 " " Improper Combination of Indoor, BS and Outdoor
Units, Indoor Units and Remote Controller
UA
Remote
Controller
Display
Applicable All indoor unit models
BSVQ100~250PV1
Models
RQYQ-PY1
RQEQ-PY1
Method of A difference occurs in data by the type of refrigerant between indoor, BS and outdoor units.
The number of indoor units is out of the allowable range.
Malfunction
Incorrect signals are transmitted among the indoor unit, BS unit, and outdoor unit.
Detection
Malfunction The malfunction decision is made as soon as either of the abnormalities aforementioned is
detected.
Decision
Conditions
Supposed
Causes
Troubleshooting
Excess of connected indoor units
Defect of outdoor unit PCB (A1P)
Mismatching of the refrigerant type of indoor and outdoor unit.
Setting of outdoor PCB was not conducted after replacing to spare parts PCB.
Troubleshooting by Remote Controller
174