Improper Combination Of Indoor, Branch Selector And Condensing Units - Daikin VRV-WIII RWEYQ72PTJU Service Manual

Troubleshooting by Indication on the Remote Controller
3.46 Improper Combination of Indoor, Branch Selector and
Condensing Units
UA
Error Code
Applicable All indoor models
Models Branch Selector unit
RWEYQ72P, 84P
 A difference occurs in data by the type of refrigerant between indoor, Branch Selector and
Method of Error
Detection
 The number of indoor units is out of the allowable range.
 Signal transmission between indoor, Branch Selector and condensing units is abnormal.
Error Decision
The error decision is made as soon as either of the abnormalities aforementioned is detected.
Conditions
 Excess of connected indoor units
Supposed
 Defective condensing unit PCB (A1P)
Causes
 Mismatch of the refrigerant type of indoor and condensing unit.
 Setting condensing unit PCB was not carried out after replacing to spare PCB.
230
condensing units.
SiUS30-1301
Service Diagnosis