Drain Level Above Limit - Daikin VRV-WIII RWEYQ72PTJU Service Manual

SiUS30-1301
3.8

Drain Level above Limit

AF
Error Code
Applicable FXFQ, FXZQ, FXMQ, FXDQ
Models
Method of Error
Water leakage is detected based on float switch ON/OFF operation while the compressor is in non-
Detection operation.
Error Decision
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.
Conditions
 Humidifier unit (optional accessory) leaking
Supposed
 Defective drain pipe (upward slope, etc.)
Causes
 Defective indoor unit PCB
Troubleshooting
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Field
drain piping
YES
has a defect such as
upward sloping.
NO
A
humidifier
unit (optional
YES
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.
Defective indoor unit PCB.
169