Uf System Is Not Set Yet - Daikin R71FUV1 Service Manual

Si20-701_B
UF
3.106
Remote Controller Display
UF
Applicable Models
FMCQ, FMDQ-A7/B7
CMSQ
Method of Error Detection
On check operation, the number of indoor units in terms
of transmission is not corresponding to that of indoor
units that have made changes in temperature.
Error Decision Conditions
The error is determined as soon as the abnormality
aforementioned is detected through checking the system
for any erroneous connection of units on the check
operation.
Supposed Causes
Improper connection of transmission wiring between
indoor-outdoor units and outdoor-outdoor units
Failure to execute check operation
Defective indoor unit PCB
Stop valve is not opened
448
System is not Set yet
Troubleshooting by Remote Controller