SiAF332111E
Troubleshooting by Error Code
Part 6 Service Diagnosis
251
Reference
Reference
Troubleshooting
CHECK 3
Refer to page 339.
CHECK 11
Refer to page 350.
NO
Is the
temperature
checked by the
Service Checker same as
the measurement of the
temperature?
NO
Replace the discharge pipe
thermistor (R21T).
Replace the outdoor unit main
PCB (A1P).
YES
YES
Service Checker
Connect the Service Checker, and then compare the
discharge pipe temperature measured by the Service
Checker and the measurement of discharge pipe
surface temperature.
Connect the Service Checker.
Reset the system operation,
and then restart it.
Are
the characteristics
of the discharge pipe
thermistor normal?
CHECK 11
• Thermistor is normal, and temperature detection with
the outdoor unit main PCB is also normal.
• The discharge pipe temperature has really become
high.
CHECK 3
Eliminate the causes of superheat operation.
NO
Open the stop valve.
YES
Is the stop valve open?
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Summary of Contents for VRV S RXQ4/5ARV1
Page 1: ...Service Manual Cooling Only 50 60 Hz RXQ4 5ARV1 RXMQ6ARV1 RXMQ8 10 12ARY1 SiAF332111E...
Page 369: ...SiAF332111E Wiring Diagrams Part 7 Appendix 363 RXMQ6ARV1 C 3D137051...
Page 370: ...Wiring Diagrams SiAF332111E 364 Part 7 Appendix RXMQ8ARY1 C 3D137060...
Page 371: ...SiAF332111E Wiring Diagrams Part 7 Appendix 365 RXMQ10 12ARY1 3D121610B...
Page 375: ...SiAF332111E Wiring Diagrams Part 7 Appendix 369 FXMQ40 50 63 80 100ARV1 3D127112 04 59...