Daikin VRV X RXQ6-48ANR Series, Service Manual, Page: 212 / 297

Troubleshooting by Error Code SiME341909EA
206 Part 6 Service Diagnosis
5.31 Wet Alarm
Applicable
Models
All outdoor unit models
Error Code
F4
Method of Error
Detection
In cooling operation, detect the condition under which liquid refrigerant returns to the
compressor, according to the temperature and pressure of each part.
Error Decision
Conditions
When the following wet state continues for a period of 180 minutes, an alert is issued.
An error is defined for 240 minutes.
 Wet state in outdoor units
When the following wet state continues for a period of 180 minutes, an alert is issued.
 Wet state in some of indoor units
Supposed
Causes
 Defective suction pipe thermistor
 Defective discharge pipe thermistor

Defective high pressure sensor
 Defective indoor unit electronic expansion valve
 Dirty air filter