Troubleshooting by Indication on the Remote Controller
71
3.10
AF
Drain Level above Limit
Remote Controller Display
AF
Applicable Models
R-22: FXF, FXC, FXK, FXS, FXM, FXYB
R-410A:FXFQ, FXZQ, FXCQ, FXKQ, FXDQ, FXMQ,
FXHQ, FXUQ
Method of Error Detection
Water leakage is detected based on float switch ON/OFF
operation while the compressor is in non-operation.
Error Decision Conditions
When the float switch changes from ON to OFF while the
compressor is in non-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 PCB
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