System Not Set Yet - Daikin RXQ12AHR Service Manual

Troubleshooting by Error Code

5.59 System Not Set Yet

Applicable All indoor unit models
Models All outdoor unit models
UF
Error Code
Method of Error On check operation, the number of indoor units in terms of transmission is not corresponding to
Detection that of indoor units that have made changes in temperature.
Error Decision
The error is determined as soon as the abnormality aforementioned is detected through
Conditions checking the system for any erroneous connection of units on the check operation.
Supposed
 Improper connection of transmission wiring between indoor-outdoor units and outdoor-
Causes
 Failure to execute check operation
 Defective indoor unit PCB
 Stop valve is not opened
Troubleshooting
284
outdoor units
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Are the stop
valves opened?
YES
Is the check
operation
carried out?
YES
Is
indoor-outdoor
and outdoor-outdoor unit
transmission wiring
normal?
YES
NO
Is
indoor-outdoor
NO
and outdoor-outdoor unit
transmission wiring
normal?
NO
NO
SiAF341904E
Open the stop valve.
YES
Replace the indoor unit PCB.
After fixing incorrect wiring,
press and hold the RETURN
(BS3) button on the outdoor
unit main PCB for 5 seconds.
The unit will not run for up to
12 minutes.
Wiring check operation may
not have been carried out
successfully.
Part 6 Service Diagnosis