Improper Combination Of Indoor And Outdoor Units, Indoor Units And Remote Controller - Daikin RXSQ24TAVJU Service Manual

Troubleshooting by Error Code
4.55 Improper Combination of Indoor and Outdoor Units,
Indoor Units and Remote Controller
UA
Error Code
Applicable All indoor units
Models
Method of Error A difference occurs in data by the type of refrigerant between indoor and outdoor units.
Detection The number of indoor units is out of the allowable range.
Error Decision
The error decision is made as soon as either of the abnormalities aforementioned is detected.
Conditions
Supposed
Causes
231
Excess of connected indoor units
Defective outdoor main PCB
Mismatching of the refrigerant type of indoor and outdoor unit.
Setting of outdoor main PCB was not conducted after replacing to spare PCB.
SiUS331708EA
Service Diagnosis