SiMX042215E
Troubleshooting
Part 6 Service Diagnosis
75
4.15 Discharge Pipe Temperature Control
Error Code
F3
Method of Error
Detection
An error is determined with the temperature detected by the discharge pipe thermistor.
Error Decision
Conditions
If the temperature detected by the discharge pipe thermistor rises above
A
°C, the
compressor stops.
The error is cleared when the discharge pipe temperature has dropped below
B
°C.
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 60 minutes without any other error
12 class
R6000880
18 class
24 class
Supposed
Causes
Defective discharge pipe thermistor
(Defective outdoor heat exchanger thermistor or outdoor temperature thermistor)
Defective electronic expansion valve or coil
Refrigerant shortage
Water mixed in refrigerant
Defective stop valve
Defective outdoor unit PCB
A
(°C)
B
(°C)
(1) Above 80 Hz (rising), above 75 Hz (dropping)
116
104
(2) 40 ~ 80 Hz (rising), 35 ~ 75 Hz (dropping)
110
98
(3) Below 40 Hz (rising), below 35 Hz (dropping)
110
88
A
(°C)
B
(°C)
116
85
A
(°C)
B
(°C)
(1) Above 50 Hz (rising), above 45 Hz (dropping)
115
85
(2) 21 ~ 50 Hz (rising), 16 ~ 45 Hz (dropping)
103
73
(3) Below 21 Hz (rising), below 16 Hz (dropping)
95
65
Zone (1)
Frequency
Zone (2)
Zone (3)
75 Hz
35 Hz
80 Hz
40 Hz
Zone (1)
Fre
qu
ency
Zone (2)
Zone (3)
45 Hz
16 Hz
50 Hz
21 Hz
(R2077
8
)
