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Troubleshooting by Error Code
SiAF332111E
268
Part 6 Service Diagnosis
5.43 Radiation Fin Temperature Rise Abnormality
5.43.1 Radiation Fin Temperature Rise Abnormality (4/5 HP Models)
Applicable
Models
RXQ4/5AR
Error Code
L4
Method of Error
Detection
The radiation fin temperature is detected by the radiation fin thermistor.
Error Decision
Conditions
The radiation fin temperature exceeds a certain temperature.
Supposed
Causes
Activation of radiation fin thermistor
Defective outdoor unit main PCB
Defective radiation fin thermistor
Troubleshooting
Defective radiation from the power
unit
• Blocked air suction port
• Stained radiation fin
• High outdoor air temperature
Connect the connector correctly.
Eliminate
P4
error.
Keep operating.
Replace the outdoor unit
main PCB (A1P).
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Caution
YES
YES
YES
YES
NO
NO
NO
NO
Is the radiation fin
temperature greater than the
designed temperature?
Does the remote
controller display error
code
P4
?
Does the
connector X111A of fin
thermistor connect to the
outdoor unit main PCB
correctly?
When the unit starts
operating, is the error code
L4
displayed again?
Connect to the power and then press
the
INSPECTION/TEST
button on
remote controller.
Summary of Contents for VRV S RXMQ10ARY1
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...