SiUS342004EB
Troubleshooting by Error Code
Part 6 Service Diagnosis
274
Note(s)
Reference
3.28 Remote Sensor Abnormality
Applicable
Models
FXTQ-TA, FXTQ-TB, CXTQ-TA
Error Code
C9
Method of Error
Detection
The error is detected by remote sensor temperature.
Error Decision
Conditions
When the remote sensor becomes disconnected or shorted while the unit is running.
Supposed
Causes
Defective indoor unit thermistor (R1T) for room temperature
Defective indoor unit PCB
Troubleshooting
1. Connector and indoor unit control PCB
CHECK 11
Refer to page 366.
Is the
optional remote sensor
is installed?
Field setting
10(20)-2 is set to
03
.
Connector is
connected to the indoor
unit control PCB
(
1).
Resistance
is normal when
measured after
disconnecting the sensor
from the indoor unit
control PCB.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Set to
03
.
Replace the indoor unit control
PCB.
NO
NO
YES
YES
Replace the indoor unit control
PCB.
Connect the sensor and turn ON
again.
NO
NO
Replace the sensor (R1T).
YES
YES
CHECK 11
Connector for remote sensor
PCB
X4A
A1P
Содержание VRV RXYQ72-384XAYCA
Страница 1: ...Service Manual RXYQ72 384XAYCA RXYQ72 384XBYCA Heat Pump 60 Hz SiUS342004EB...
Страница 366: ...Check SiUS342004EB 359 Part 6 Service Diagnosis Reference Reference CHECK 7 Refer to page 364 CHECK 8 Refer to page 365...
Страница 391: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 384 1 Wiring Diagrams 1 1 Outdoor Unit RXYQ72 96 120 144 168XAYCA 2D119209B...
Страница 395: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 388 FXFQ07 09 12 15 18 24 30 36 48TVJU 3D086460B...
Страница 396: ...Wiring Diagrams SiUS342004EB 389 Part 7 Appendix BYCQ125BGW1 Self Cleaning Decoration Panel for FXFQ T 3D076375A...
Страница 397: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 390 FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Страница 401: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 394 FXEQ07 09 12 15 18 24PVJU 3D098557A...
Страница 402: ...Wiring Diagrams SiUS342004EB 395 Part 7 Appendix FXDQ07 09 12 18 24MVJU C 3D050501C...
Страница 403: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 396 FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU C 3D110467C...
Страница 405: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 398 FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...
Страница 409: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 402 FXHQ12 24 36MVJU 3D048116C...
Страница 410: ...Wiring Diagrams SiUS342004EB 403 Part 7 Appendix FXAQ07 09 12 18 24PVJU 3D075354F...
Страница 418: ...Wiring Diagrams SiUS342004EB 411 Part 7 Appendix VAM1200GVJU 3D073270D...