SiUS342303E
Troubleshooting by Error Code
Part 6 Service Diagnosis
270
3.18 Drain Level above Limit
Applicable
Models
FXFQ-T, FXZQ-TB, FXUQ-PA, FXEQ-P, FXDQ-M, FXSQ-TB, FXMQ-PB, FXMQ-TB
Error Code
AF
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 control PCB
Troubleshooting
Modify the drain piping.
YES
YES
N
O
Field
drain piping
has a defect such as
up
w
ard sloping.
N
O
A
humidifier
unit (optional
accessory) is installed
on the indoor
unit.
Defective indoor unit control
PCB (A1P).
Check if the humidifier unit is
leaking.
Caution
Be sure to turn off the po
w
er s
w
itch before connecting or disconnecting
connectors, or parts may be damaged.
Summary of Contents for VRV EMERION RXYQ-AATJA
Page 1: ...Service Manual Heat Pump 60 Hz RXYQ AATJA 208 230 V RXYQ AAYDA 460 V SiUS342303E...
Page 410: ...Wiring Diagrams SiUS342303E 403 Part 7 Appendix FXEQ07 09 12 15 18 24PVJU 3D098557A...
Page 411: ...SiUS342303E Wiring Diagrams Part 7 Appendix 404 FXDQ07 09 12 18 24MVJU C 3D050501C...
Page 416: ...Wiring Diagrams SiUS342303E 409 Part 7 Appendix FXHQ12 24 36MVJU 3D048116C...
Page 417: ...SiUS342303E Wiring Diagrams Part 7 Appendix 410 FXAQ07 09 12 18 24PVJU 3D075354F...
Page 424: ...Wiring Diagrams SiUS342303E 417 Part 7 Appendix VAM1200GVJU 3D073270D...
