Af" Indoor Unit: Drain Level Above Limit - Daikin FCQ18PVJU Service Manual

SiUS28-902_a
AF
3.7 " " Indoor Unit: Drain Level above Limit
AF
Remote
Controller
Display
Applicable
FCQ
Models
Method of
Water leakage is detected based on float switch ON/OFF operation while the compressor is in
Malfunction non-operation.
Detection
Malfunction When the float switch changes from ON to OFF while the compressor is in non-operation.
Decision
Conditions
 Humidifier unit (optional accessory) leaking
Supposed
 Defect of drain pipe (upward slope, etc.)
Causes
 Defect of indoor unit P.C.B.
Troubleshooting
Troubleshooting
Be sure to turn off the power switch before connecting or disconnecting
Caution
the connector, or parts could be damaged.
Field drain
YES
piping has a defect such as
upward sloping.
NO
A humidifier
YES
unit (optional accessory)
is installed on the
indoor unit.
NO
Troubleshooting by Indication on the Remote Controller
Modify the drain piping.
Check if the humidifier unit is
leaking.
Defect of indoor unit P.C.B.
94