Troubleshooting by Remote Controller Si20-701_B
105
3.12
AF
Drain System Abnormality
Remote Controller Display
AF
Applicable Models
FH(Y)C, FH(Y)K, FH(Y)B, FH(Y), FAY, FV(Y), FUY, FHC,
FH, FDMG, FDBG, FDBT, FCQ(H), FFQ, FHQ, FAQ,
FBQ, FDQ, FUQ
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
The float switch changes from ON to OFF while the
compressor is OFF.
Supposed Causes
îš„ Error in the drain pipe installation
îš„ Defective float switch
îš„ Defective indoor unit PCB
Troubleshooting
Are float
switch and drain pipe
normal?
NO
YES
Possible
defective float
switch. Check to
see if drain-up
height and
horizontal pipe
length exceed
specifications.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
A
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