SiUS331604E
Troubleshooting by Error Code
Service Diagnosis
158
4.15 Remote Sensor Abnormality
Error Code
C9
Applicable
Models
FXTQ
Method of Error
Detection
The error is detected out by temperature detected by remote sensor.
Error Decision
Conditions
When the remote sensor becomes disconnected or shorted while the unit is running.
Supposed
Causes
Defective indoor unit thermistor (R1T) for air inlet
Defective indoor unit PCB
Troubleshooting
Is the
optional remote
sensor is installed?
Field
setting 10(20)-2 is set at
C3.
Connector is
connected to X16A of
the indoor unit
PCB.
Resistance
is normal when
measured after
disconnecting the sensor
from the indoor unit
PCB.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Set at 03.
Replace the indoor unit PCB.
NO
NO
YES
YES
Replace the indoor unit PCB.
Connect the sensor and turn ON
again.
NO
NO
Replace the sensor (R1T).
YES
YES
CHECK 11
CHECK 11
Summary of Contents for VRV IV-S RXTQ-TAVJU Series
Page 1: ...Service Manual SiUS331604E RXTQ36 48 60TAVJU Heat Pump 60 Hz...
Page 254: ...Wiring Diagrams SiUS331604E 241 Appendix RXTQ48TAVJU 3D100496A...
Page 255: ...SiUS331604E Wiring Diagrams Appendix 242 RXTQ60TAVJU 3D100497A...
Page 260: ...Wiring Diagrams SiUS331604E 247 Appendix FXEQ07 09 12 15 18 24PVJU C 3D098557...
Page 267: ...SiUS331604E Wiring Diagrams Appendix 254 FXTQ12 18 24 30 36 42 48 54PAVJU 3D065036G...
Page 270: ...Wiring Diagrams SiUS331604E 257 Appendix VAM1200GVJU 3D073270C...
Page 271: ...Revision History Month Year Version Revised contents 06 2016 SiUS331604E First edition...
