System Not Set Yet - Daikin VRV RXYMQ-A Series Service Manual

SiME332106E

5.66 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
 Failure to execute check operation
Causes
 Defective indoor unit PCB
 Stop valve is not opened
Troubleshooting
Part 6 Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
NO
Are the stop
valves opened?
YES
Is the check
NO
operation
carried out?
YES
Is
indoor-outdoor
NO
unit transmission wiring
normal?
YES
Troubleshooting by Error Code
Is
indoor-outdoor
YES
unit transmission wiring
normal?
NO
Open the stop valve.
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.
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