Troubleshooting by Error Code SiUS331604E
177 Service Diagnosis
4.25 Discharge Pipe Temperature Abnormality
Error Code F3
Applicable
Models
All outdoor units
Method of Error
Detection
Abnormality is detected according to the temperature detected by the discharge pipe thermistor.
Error Decision
Conditions
The discharge pipe temperature rises to an abnormally high level.
The discharge pipe temperature rises suddenly.
Supposed
Causes
Defective discharge pipe thermistor (R2T)
Disconnection of discharge pipe thermistor (R2T)
Defective outdoor unit PCB
Troubleshooting
Refer to page 231.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Caution
YES
YES
NO
NO
CHECK 11
Replace the outdoor
main PCB (A1P).
When the
unit stops operating
because of an error, is the discharge
pipe temperature higher than
120˚C (248˚F)?
Are the
discharge pipe thermistor
properties normal?
Pull the discharge pipe thermistor out from
the outdoor unit PCB and then measure
the resistance by multifunction tester.
Short of refrigerant,
compressor failure, etc.
refrigerant system failure.
Replace the discharge
pipe thermistor (R2T).
CHECK 11
To Next Page
Loading...
Need help?
General
