Si39-504
Troubleshooting by Indication on the Remote Controller
Troubleshooting
231
3.51
“
UF
”
System is not Set yet
Remote
Controller
Display
UF
Applicable
Models
All models of indoor units
RXYQ5MA~48MA
Method of
Malfunction
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.
Malfunction
Decision
Conditions
The malfunction 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
Defect of indoor unit PC board
Stop valve is left in closed
Troubleshooting
Note:
Wiring check operation may not be successful if carried out after the outdoor unit has been off
for more than 12 hours, or if it is not carried out after running all connected indoor units in the
fan mode for at least an hour.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(V2830)
Is
indoor - outdoor
and outdoor - outdoor unit
transmission wiring
normal?
Replace indoor unit PC board.
Wiring check operation may
not have been carried out
successfully.
After fixing incorrect wiring,
push and hold the RESET
button on the master outdoor
unit PC board for 5 seconds.
(wiring check operation)
YES
NO
YES
NO
NO
YES
Is the
check operation
carried out?
Is indoor
-outdoor and outdoor-
outdoor unit transmission
wiring normal?
Open stop valve.
YES
NO
Are the stop
valves openned?
∗
The unit will not run for up to
12 minutes.
Summary of Contents for VRV II RXYQ5MATL
Page 53: ...Specifications Si39 504 42 Specifications...
Page 115: ...Outline of Control Indoor Unit Si39 504 104 Function...
Page 161: ...Field Setting Si39 504 150 Test Operation...
Page 172: ...Si39 504 Troubleshooting by Remote Controller Troubleshooting 161...
Page 266: ...Si39 504 Piping Diagrams Appendix 255 RXYQ8MA 10MA 12MAYL E TL E 3D048033A...
Page 267: ...Piping Diagrams Si39 504 256 Appendix RXYQ14MA 16MAYL E TL E 3D048034A...
Page 271: ...Wiring Diagrams for Reference Si39 504 260 Appendix RXYQ8MA 10MA 12MAYL E 3D047088C...
Page 272: ...Si39 504 Wiring Diagrams for Reference Appendix 261 RXYQ14MA 16MAYL E 3D047089C...
Page 273: ...Wiring Diagrams for Reference Si39 504 262 Appendix 2 1 2 RXYQ MATL E RXYQ5MATL E 3D049059A...
Page 274: ...Si39 504 Wiring Diagrams for Reference Appendix 263 RXYQ8MA 10MA 12MATL E 3D049060A...
Page 275: ...Wiring Diagrams for Reference Si39 504 264 Appendix RXYQ14MA 16MATL E 3D049061A...
Page 283: ...Wiring Diagrams for Reference Si39 504 272 Appendix FXCQ40M 50M 80M 125MVE 3D039557A...
Page 285: ...Wiring Diagrams for Reference Si39 504 274 Appendix FXKQ25M 32M 40M 63MVE 3D039564B...
Page 289: ...Wiring Diagrams for Reference Si39 504 278 Appendix FXMQ40M 50M 63M 80M 100M 125MVE 3D039620B...
Page 290: ...Si39 504 Wiring Diagrams for Reference Appendix 279 FXMQ200M 250MVE 3D039621B...
Page 291: ...Wiring Diagrams for Reference Si39 504 280 Appendix FXHQ32M 63M 100MVE 3D039801D...
Page 292: ...Si39 504 Wiring Diagrams for Reference Appendix 281 FXAQ20M 25M 32MVE 40M 50M 63MVE 3D034206C...
Page 309: ...Selection of Pipe Size Joints and Header Si39 504 298 Appendix Note 1...
Page 315: ...Method of Replacing The Inverter s Power Transistors and Diode Modules Si39 504 304 Appendix...