Troubleshooting for Outdoor Unit
SiUS092230EA
176
Part 6 Service Diagnosis
Reference
7.11 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 piping.
Summary of Contents for RX-W Series
Page 1: ... Applied Models Inverter Pair Heat Pump Service Manual SiUS092230EA Inverter Pair RX W Series ...
Page 207: ...SiUS092230EA Check Part 6 Service Diagnosis 201 15 18 24 class R25105 1 2 3 4 Multimeter ...
Page 209: ...SiUS092230EA Check Part 6 Service Diagnosis 203 15 18 24 class R20704 W V U DC_P1 DC_N1 ...
Page 239: ...SiUS092230EA Piping Diagrams Part 8 Appendix 233 RX24WMVJU9 3D141502 ...