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Troubleshooting by Error Code
SiAF332111E
212
Part 6 Service Diagnosis
5.10 Humidifier System Abnormality
Applicable
Models
FXFSQ-AR, FXMQ-PB
Error Code
AF
Method of Error
Detection
Water leakage from the humidifier system is detected based on float switch ON/OFF operation
while the compressor is not in operation.
Error Decision
Conditions
The float switch changes from ON to OFF while the compressor is not in operation.
Error code is displayed but the system operates continuously.
Supposed
Causes
Humidifier unit (optional accessory) leaking
Defective drain piping (upward slope, etc.)
Defective indoor unit control PCB
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Defective indoor unit
control PCB (A1P).
Modify the drain piping.
YES
NO
NO
YES
Check if the humidifier unit is
leaking.
Field drain
piping has a defect such as
upward sloping.
A humidifier
unit (optional accessory) is
installed on the
indoor unit.
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...