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
SiUS181631EA Troubleshooting for Outdoor Unit
Troubleshooting 233
7.6 Moving Part of Electronic Expansion Valve (Y1E, Y3E)
Abnormality
Error Code
E9
Method of Error
Detection
System checks if the connector is disconnected, and the detection is based on the continuity of
electronic expansion valve coil.
Error Decision
Conditions
No current is detected in the common (COM +) when power supply is ON.
Supposed
Causes
Disconnection of connectors for electronic expansion valve Y1E or Y3E
Defective moving part of electronic expansion valve
Defective main PCB (A1P)