Troubleshooting by Indication on the Remote Controller
SiUS34-907
194
Troubleshooting
3.46
“
UF
”
System is not Set yet
Remote
Controller
Display
UF
Applicable
Models
All indoor unit models
RXYMQ36 · 48PVJU
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
Failure to execute check operation
Defect of indoor unit PCB
Stop valve is left in closed position.
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.
Open stop
v
al
v
e.
Are the stop
v
al
v
es opened?
N
O
After fixing incorrect
w
iring,
p
u
sh and hold the RESET
bu
tton on the master o
u
tdoor
u
nit PCB for 5 seconds.
*
The
u
nit
w
ill not r
u
n for
u
p to
12 min
u
tes.
Is
indoor - o
u
tdoor
u
nit transmission
w
iring
normal?
N
O
Replace the indoor
u
nit PCB.
Is indoor-
o
u
tdoor
u
nit transmission
w
iring normal?
Is the
check operation
carried o
u
t?
N
O
YES
Caution
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting the connector, or parts may
b
e damaged.
YES
YES
N
O
W
iring check operation may not
ha
v
e
b
een carried o
u
t
s
u
ccessf
u
lly.
YES
Summary of Contents for VRV III-S RXYMQ36 48PVJU
Page 1: ...RXYMQ36 48PVJU R 410A Heat Pump 60Hz SiUS34 907...
Page 9: ...SiUS34 907 Safety Considerations viii...
Page 237: ...Wiring Diagrams SiUS34 907 228 Appendix 2 2 Field Wiring RXYMQ36 48PVJU 3D065370...
Page 238: ...SiUS34 907 Wiring Diagrams Appendix 229 2 3 Indoor Unit FXFQ12M 18M 24M 30M 36MVJU 3D042620C...
Page 239: ...Wiring Diagrams SiUS34 907 230 Appendix FXZQ07M 09M 12M 18MVJU 3D059263...
Page 240: ...SiUS34 907 Wiring Diagrams Appendix 231 FXDQ07M 09M 12M 18M 24MVJU 3D050501A...
Page 241: ...Wiring Diagrams SiUS34 907 232 Appendix FXMQ07P 09P 12P 18P 24P 30P 36P 48PVJU 3D065984A...
Page 242: ...SiUS34 907 Wiring Diagrams Appendix 233 FXHQ12M 24M 36MVJU 3D048116A...
Page 243: ...Wiring Diagrams SiUS34 907 234 Appendix FXAQ07M 09M 12M 18M 24MVJU 3D046039D...
Page 244: ...SiUS34 907 Wiring Diagrams Appendix 235 FXLQ12M 18M 24MVJU FXNQ12M 18M 24MVJU 3D045644A...
Page 247: ...Option List SiUS34 907 238 Appendix...
Page 249: ...Example of Connection 240...
Page 263: ...Precautions for New Refrigerant R 410A SiUS34 907 254 Precautions for New Refrigerant R 410A...
