Troubleshooting by Error Code
3.46 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
385
SiUS372201EB
Part 6 Service Diagnosis