Troubleshooting for Outdoor Unit SiBE121123_A
193 Service Diagnosis
7.10 Discharge Pipe Temperature Control
Error Code
F3
Method of Error
Detection
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 is 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
Supposed
Causes
Defective discharge pipe thermistor
(Defective outdoor heat exchanger thermistor or outdoor temperature thermistor)
Defective outdoor electronic expansion valve
Refrigerant shortage
Defective four way valve
Water mixed in refrigerant
Defective stop valve
Defective outdoor unit PCB
Troubleshooting
Check No.01
Refer to P.206
Check No.12
Refer to P.210
Check No.14
Refer to P.211
A
(°C)
B
(°C)
40 class 110 97
50 class 110 95
(R15286)
Caution
NG
OK
OK
OK
NG
NG
∗ Discharge pipe thermistor
∗ Outdoor heat exchanger thermistor
∗ Outdoor temperature thermistor
∗ Refrigerant shortage
∗ Four way valve
∗ Water mixed
∗ Stop valve
Check No. 01
Check the thermistors.
Check No. 14
Check the refrigerant
line.
Check No. 12
Check the outdoor electronic
expansion valve
.
Replace the defective
thermistor.
Replace the outdoor
electronic expansion valve
or the coil.
Refer to the refrigerant line
check procedure.
Replace the outdoor unit
PCB.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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