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 277
Troubleshooting
NO
NO
YES
YES
NO
YES
YES
Connect the power supply wire
for the outside control adapter
to 5V supply line.
Replace the outdoor unit main
PCB.
Check if
the power supply
wire for the outside control
adapter is connected to
5V supply
line.
Replace the PCB of the outside
control adapter.
Replace the outdoor unit main
PCB.
NO
NO
YES
Correct the connecting wiring
with the outside control adapter.
Diagnosis Flow 1
Check if
any disconnection or
connection error is detected in
connecting wires with
outside control
adapter.
Supply power to the outdoor
unit.
Check if power
is supplied to the
outdoor units.
Check if
the normal condition
monitor LED for the outdoor
unit PCB blinks.
Check if
the normal condition monitor
LED for the outside control
adapter blinks.
Check 3 Check 4
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.