Wet Alarm - Daikin VRV RXYQ72-384XAYCA Service Manual

Troubleshooting by Error Code

3.41 Wet Alarm

Applicable
All outdoor unit models
Models
F4
Error Code
Method of Error
In cooling operation, detect the condition under which liquid refrigerant returns to the compressor,
Detection according to the temperature and pressure of each part.
Error Decision
When the following wet state continues for a period of 90 minutes, an alert is issued.
Conditions An error is defined for 120 minutes.
 Wet state in outdoor units
When the following wet state continues for a period of 45 minutes, an alert is issued.
 Wet state in some of indoor units
Supposed
 Defective suction pipe thermistor
Causes
 Defective compressor suction thermistor
 Defective discharge pipe thermistor
 Defective high pressure sensor
 Defective indoor unit electronic expansion valve
 Dirty air filter
297
SiUS342004EB
Part 6 Service Diagnosis