Service Manual
Table Of Contents
- Cover
- Table of contents
- Part 1 List of Functions
- Part 2 Specifications
- Part 3 Printed Circuit Board Connector Wiring Diagram
- Part 4 Refrigerant Circuit
- Part 5 Functions and Control
- Part 6 Test Operation and Field Settings
- Part 7 Remote Controller
- Part 8 Troubleshooting
- 1. Troubleshooting with LED
- 2. Service Diagnosis
- 3. Error Codes and Description
- 4. Troubleshooting for CTXG, CTXS, FTXS, CDXS, FDXS, FVXS Series
- 5. Troubleshooting for FFQ Series
- 6. Troubleshooting for Branch Provider (BP) Unit
- 7. Troubleshooting for Outdoor Unit
- 8. Thermistor Resistance/Temperature Characteristics
- 9. Pressure Sensor
- 10. Method of Replacing Inverter’s Power Transistors Modules
- Part 9 Appendix
Troubleshooting for Outdoor Unit SiUS181631EA
242 Troubleshooting
7.14 Subcooling Heat Exchanger Gas Pipe Thermistor (R6T)
Abnormality
Error Code
J9
Method of Error
Detection
The temperature detected by subcooling heat exchanger gas pipe thermistor determines the error.
Error Decision
Conditions
When the subcooling heat exchanger gas pipe thermistor is short circuited or open
Supposed
Causes
Disconnection of thermistor
Defective subcooling heat exchanger gas pipe thermistor (R6T)
Defective main PCB (A1P)
Troubleshooting
Refer to Thermistor Resistance/Temperature Characteristics table 1 on page 267.
Is the
resistance is
normal when
measured after
disconnecting the
thermistor (R6T)?
(3.5 kΩ ~ 360 kΩ)
Replace the main PCB
(A1P).
(R13030)
Replace the subcooling
heat exchanger gas pipe
thermistor (R6T).
NO
YES
YES
Is the thermistor
ASSY is connected to
X13A on the main PCB
(A1P)?
Connect the thermistor and
turn on again.
NO
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.