Specifications
Table Of Contents
- Cover
- Table of Contents
- Part 1 General Information
- Part 2 Specifications
- Part 3 Refrigerant Circuit
- Part 4 Function
- Part 5 Test Operation
- Part 6 Troubleshooting
- Part 7 Appendix
- 1. Piping Diagrams
- 2. Wiring Diagrams for Reference
- 3. List of Electrical and Functional Parts
- 4. Option List
- 5. Piping Installation Point
- 6. Example of connection (R-410A Type)
- 7. Thermistor Resistance / Temperature Characteristics
- 8. Pressure Sensor
- 9. Method of Checking the Inverter’s Power Transistors and Diode Modules
- Part 8 Precautions for New Refrigerant (R-410A)
- Index
- Drawings & Flow Charts
Si34-704 Troubleshooting by Indication on the Remote Controller
Troubleshooting 285
Troubleshooting
NO
YES
YES
YES
NO
NO
NO
YES
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Diagnosis Flow 3
Diagnosis Flow 4
Check if the unit
is connected to multi.
Replace the main PCB of the
outdoor unit.
Replace the main PCB of the
outdoor unit.
Check the model of the outdoor
unit.
Correct the setting to reset the
power.
Replace the spare parts PCB.
Replace the main PCB of the
outdoor unit.
Check
if the unit is not
connected to outdoor
units of different
models.
Check if
the outdoor unit PCB is
replaced with PCB for
spare parts.
Check if
the spare parts PCB
setting is correct.
Check 3
Check 3 Check 4
Check 4