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
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
Summary of Contents for VRV IV-S RXTQ-TAVJU Series
Page 1: ...Service Manual SiUS331604E RXTQ36 48 60TAVJU Heat Pump 60 Hz...
Page 254: ...Wiring Diagrams SiUS331604E 241 Appendix RXTQ48TAVJU 3D100496A...
Page 255: ...SiUS331604E Wiring Diagrams Appendix 242 RXTQ60TAVJU 3D100497A...
Page 260: ...Wiring Diagrams SiUS331604E 247 Appendix FXEQ07 09 12 15 18 24PVJU C 3D098557...
Page 267: ...SiUS331604E Wiring Diagrams Appendix 254 FXTQ12 18 24 30 36 42 48 54PAVJU 3D065036G...
Page 270: ...Wiring Diagrams SiUS331604E 257 Appendix VAM1200GVJU 3D073270C...
Page 271: ...Revision History Month Year Version Revised contents 06 2016 SiUS331604E First edition...
