Troubleshooting by Indication on the Remote Controller
SiUS34-907
142
Troubleshooting
Troubleshooting
∗
Make measurement of resistance between the connector pins, and then make sure the resistance falls in the
range of 40 to 50
Ω
.
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 po
w
er s
u
pply off, and t
u
rn po
w
er
s
u
pply on again.
Ret
u
rn to normal?
External factor other than
malf
u
nction (noise, for example).
YES
N
O
The
connector of
o
u
tdoor
u
nit PCB (A1P)
for electronic expansion
v
al
v
e is connected.
Ens
u
re correct connection.
N
O
YES
The coil
resistance of electronic
expansion
v
al
v
e is normal.
(
*
1)
Replace the connecting ca
b
le.
N
O
Replace the o
u
tdoor
u
nit PCB
(A1P).
YES
Check the electronic expansion
v
al
v
e corresponding to the malf
u
nction code “
E9
” in the monitor mode.
(Refer to P.105, 106 for ho
w
to check.)
W
hen Confirmation of malf
u
nction 4 sho
w
s as follo
w
s:
®
Electronic expansion
v
al
v
e for main
u
se (Y1E)
W
hen Confirmation of malf
u
nction 4 sho
w
s as follo
w
s:
®
Electronic expansion
v
al
v
e for s
ub
cooling (Y3E)
Explanation of “ ”
Master
u
nit
Sla
v
e
u
nit 1
Sla
v
e
u
nit 2
System
(Orange) 1
Measuring points
1 - 6
2 - 6
3 - 6
4 - 6
Judgement criteria
40~50
Ω
(Red) 2
(Yellow) 3
(Black) 4
5
COM[+] (Gray) 6
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...