Troubleshooting by Error Code
SiUS371901EB
357
Part 6 Service Diagnosis
Reference
3.47 High Pressure Sensor Abnormality
Applicable
Models
All outdoor unit models
Error Code
JA
Method of Error
Detection
Detects according to temperature detected with the high pressure sensor.
Error Decision
Conditions
The high pressure sensor is short circuit or open circuit.
(Pressure range: 0-4.3 MPa (0-624 psi))
Supposed
Causes
Defective high pressure sensor
Connection of low pressure sensor in mistake for high pressure sensor
Defective outdoor unit main PCB
Defective connection of high pressure sensor
Troubleshooting
CHECK 12
Refer to page 432.
Are the
characteristics
of the high pressure
sensor normal? (Make a
comparison between voltage
characteristics and gauge
pressure.)
Replace the high pressure sensor
(S1NPH).
Replace the outdoor unit main PCB
(A1P).
NO
Is the PCB
detection pressure
normal? Make a
comparison between data on
pressure checked by the Service
Checker and the voltage
characteristics.
Replace the outdoor unit main PCB
(A1P).
NO
Are the
characteristics of the
high pressure sensor
normal?
Replace the high pressure sensor
(S1NPH).
NO
YES
YES
YES
Reset the operation, and restart
operation.
(1) Mount a pressure gauge on the
high pressure service port.
(2) Connect the Service Checker for
VRV
systems.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
CHECK 12
CHECK 12
Summary of Contents for REYQ72-432XAYCU
Page 455: ...SiUS371901EB Wiring Diagrams Part 7 Appendix 448 REYQ144 168XATJU REYQ144 168XATJA 2D119206B ...
Page 457: ...SiUS371901EB Wiring Diagrams Part 7 Appendix 450 REYQ144 168XAYDU REYQ144 168XAYDA 2D119208C ...
Page 461: ...SiUS371901EB Wiring Diagrams Part 7 Appendix 454 FXZQ05 07 09 12 15 18TAVJU 3D110443A ...
Page 463: ...SiUS371901EB Wiring Diagrams Part 7 Appendix 456 FXEQ07 09 12 15 18 24PVJU 3D098557A ...
Page 464: ...Wiring Diagrams SiUS371901EB 457 Part 7 Appendix FXDQ07 09 12 18 24MVJU C 3D050501C ...
Page 468: ...Wiring Diagrams SiUS371901EB 461 Part 7 Appendix FXHQ12 24 36MVJU 3D048116C ...
Page 469: ...SiUS371901EB Wiring Diagrams Part 7 Appendix 462 FXAQ07 09 12 18 24PVJU 3D075354F ...
Page 475: ...SiUS371901EB Wiring Diagrams Part 7 Appendix 468 VAM1200GVJU 3D073270D ...
Page 478: ...Wiring Diagrams SiUS371901EB 471 Part 7 Appendix BS6 8Q54TVJ 2D089122B ...
Page 479: ...SiUS371901EB Wiring Diagrams Part 7 Appendix 472 BS10 12Q54TVJ 2D089121B ...
Page 481: ...SiUS371901EB Wiring Diagrams Part 7 Appendix 474 BSF6 8Q54TVJ 2D123905A ...