Uf System Is Not Set Yet - Daikin VRVII Manual

Troubleshooting by Indication on the Remote Controller
UF
3.70
Remote Controller Display
UF
Applicable Models
All indoor models
All outdoor unit series
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.
System is not Set yet
341