Troubleshooting by Indication on the Remote Controller
SiUS34-907
160
Troubleshooting
Troubleshooting
Fa
u
lty radiation from the po
w
er
u
nit
• Blocked air s
u
ction port
• Stained radiation fin
• High o
u
tdoor temperat
u
re
The radiation
fin of the main PCB
concerned exceeded a
temperat
u
re of
1
8
1°F.
Contin
u
e operation.
It is pro
b
a
b
le that the
radiation fin temperat
u
re
b
ecame high d
u
e to some
field factors. In this
connection, check the
follo
w
ing points:
• Stained radiation fin
• Airflo
w
o
b
str
u
cted
w
ith dirt
or foreign matters
• Damage to fan impellers
• Too high o
u
tdoor
temperat
u
re
YES
Replace the main PCB (A1P).
Does
the malf
u
nction
rec
u
r
w
hen the po
w
er
s
u
pply t
u
rns O
N
to start
the compressor?
YES
Replace the thermistor (Fin TH).
Is the thermistor
resistance normal?
N
O
N
O
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.
T
u
rn OFF the po
w
er s
u
pply, and then
make meas
u
rement of resistance of
the radiation fin thermistor.
N
O
Connect and disconnect the connector
(X111A) for the fin thermistor, and then
properly connect it.
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...
