Ua" Improper Combination Of Indoor Units; Ua" Improper Combination Of Indoor Units And; Outdoor Units/Indoor Units And Remote Controller; And Outdoor Units/Indoor Units And Remote Controller - Daikin RXYQ72 Serivce Manual

Troubleshooting by Indication on the Remote Controller
2.50 "UA"
Improper Combination of Indoor Units and Outdoor
Units/Indoor Units and Remote Controller
UA
Remote
Controller
Display
Applicable All indoor unit models
RXYQ72M, 96M
Models
Remote controller
Method of A difference occurs in data by the type of refrigerant between indoor and outdoor units.
The number of indoor units is outside of the allowable range.
Malfunction
Detection
Malfunction The malfunction decision is made as soon as either of the abnormalities aforementioned is
detected.
Decision
Conditions
Supposed
Causes
186
Excess of connected indoor units
Defect of outdoor unit PC board (A1P)
Mismatching of the refrigerant type of indoor and outdoor unit
Setting of outdoor PC board was not conducted after replacing to spare parts PC board
SiUS39-601
Troubleshooting