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Troubleshooting
SiBE811001EB
179
CONVENI-PACK
8.4.9 Humidifier Unit Defect
Error Code
AF
Applicable
Models
All indoor models
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
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.
NO
YES
Modify the drain piping.
NO
YES
Check if the humidifier unit is
leaking.
Defective indoor unit PCB.
Field drain piping
has a defect such
as upward sloping.
A humidifier unit
(optional
accessory) is
installed on the
indoor unit.