Af" Drain Level Above Limit - Daikin VRV III-S RXYMQ36 48PVJU Service Manual

SiUS34-907
AF
3.7 " " Drain Level above Limit
AF
Remote
Controller
Display
Applicable FXMQ, FXDQ
Models
Method of
Water leakage is detected based on float switch ON/OFF operation while the compressor is in non-
Malfunction 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 PCB
Troubleshooting
Caution
Be sure to turn off the power switch before connecting or disconnecting the connector, or parts may be damaged.
piping has a defect such as
unit (optional accessory)
Troubleshooting
Field drain
YES
upward sloping.
NO
A humidifier
YES
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 PCB.
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