Troubleshooting by Error Code
SiUS371614E
191
Service Diagnosis
3.14 Drain Level above Limit
Error Code
AF
Applicable
Models
FXFQ, FXZQ, FXEQ, FXDQ, FXMQ
Method of Error
Detection
Water leakage is detected based on float switch ON/OFF operation while the compressor is not in
operation.
Error Decision
Conditions
When 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 pipe (upward slope, etc.)
Defective indoor unit main PCB
Troubleshooting
Modify the drain piping.
YES
YES
NO
Field
drain piping
has a defect such as
upward sloping.
NO
A
humidifier
unit (optional
accessory) is installed
on the indoor
unit.
Defective indoor unit main PCB
(A1P).
Check if the humidifier unit is
leaking.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Summary of Contents for REYQ-TA Series
Page 1: ...Service Manual SiUS371614E REYQ72 456TAYDU REYQ72 456TATJU Heat Recovery 60 Hz...
Page 304: ...Wiring Diagrams SiUS371614E 291 Appendix REYQ96 120TAYDU 2D106425A...
Page 305: ...SiUS371614E Wiring Diagrams Appendix 292 REYQ144 168TAYDU 2D106426A...
Page 306: ...Wiring Diagrams SiUS371614E 293 Appendix REYQ72TATJU 3D106421A...
Page 307: ...SiUS371614E Wiring Diagrams Appendix 294 REYQ96 120TATJU 2D106422A...
Page 308: ...Wiring Diagrams SiUS371614E 295 Appendix REYQ144 168TATJU 2D106423A...
Page 318: ...Wiring Diagrams SiUS371614E 305 Appendix VAM1200GVJU 3D073270C...
Page 320: ...Wiring Diagrams SiUS371614E 307 Appendix 1 4 2 Multi Branch Selector Unit BS4Q54TVJ 3D089123B...
Page 321: ...SiUS371614E Wiring Diagrams Appendix 308 BS6 8Q54TVJ 2D089122B...
Page 322: ...Wiring Diagrams SiUS371614E 309 Appendix BS10 12Q54TVJ 2D089121B...
Page 323: ...Revision History Month Year Version Revised contents 02 2017 SiUS371614E First edition...
