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 227
7.2 Actuation of High Pressure Switch
Error Code
E3
Method of Error
Detection
Abnormality is detected when the contact of the high pressure switch opens.
Error Decision
Conditions
When the high pressure switch activation count reaches the number specific to the operation mode
(Reference)
Operating pressure: 4.0 MPa (1338 ftAq)
Reset pressure: 3.0 MPa (1004 ftAq)
Supposed
Causes
Actuation of high pressure switch
Defective high pressure switch
Defective outdoor unit PCB
Instantaneous power failure
Defective high pressure sensor