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Troubleshooting for Outdoor Unit
SiUS091601EA
167
Part 6 Service Diagnosis
Reference
7.9 System Shutdown due to Temperature Abnormality in the
Compressor
Error Code
F8
Method of Error
Detection
Operation is halted when the temperature detected by the discharge pipe thermistor exceeds the
determined limit.
Error Decision
Conditions
Temperature exceeds the detection threshold of 127.5°C (261.5°F) during forced cooling operation.
Supposed
Causes
Abnormal operation due to air intrusion
Defective discharge pipe thermistor
Troubleshooting
Check No.01
YES
(R23655)
NO
OK
NG
Caution
Replace the outdoor unit.
#
Replace both the discharge pipe
thermistor and the outdoor unit
PCB (main PCB).
Replace the outdoor unit.
#
Abnormal
deformation of piping in the
outdoor unit
Check No. 01
Check the discharge pipe
thermistor
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
#
Replace the unit as directed in the installation manual, making sure that air does not intrude
into the refrigerant pipings.
Summary of Contents for FTX-N Series
Page 18: ...SiUS091601EA 13 Part 2 Specifications 1 Specifications 14 Part 2 Specifications...
Page 198: ...Check SiUS091601EA 193 Part 6 Service Diagnosis 18 24 class R24538 1 2 3 4 Multimeter...
Page 201: ...SiUS091601EA Check Part 6 Service Diagnosis 196 18 24 class R24539 DC DC W V U...
Page 229: ...SiUS091601EA Piping Diagrams Part 8 Appendix 224 RXL15QMVJU RXL18UMVJU 3D100007 3D123368...
Page 230: ...Piping Diagrams SiUS091601EA 225 Part 8 Appendix RXL24UMVJU 3D107985A...