Fujitsu UTB-GCA Operating Manual page 76

TIME
Press to select the indoor units, outdoor units, or central remote controller in
the remote control group selected in 3.
Indoor unit error display
Refrigerant system
Error code
Outdoor unit error display
Refrigerant system
Error code
*Outdoor unit addresses are displayed as follows.
Master: -0, Slave
Central remote control error display
Error code
Press again to end the error monitor.
CHECK
address
L
TIME
M
address
: -1, Slave : -2, Slave
1 2
L
TIME
M
L
TIME
Indoor unit address
Outdoor unit address*
: -3
3
Central remote
controller address
75