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 225
Troubleshooting
Remove the foreign substances.
Correct the connection of the relay
connectors.
Insert the connector.
YES
Check if
any foreign substances
around the fan.
YES
YES
NO
NO
NO
Check in the monitor mode
12HP ~18HP class models have 2 fans.
Check electric motor (electric motor 1 or 2) corresponding
to malfunction code “E7” in the monitor mode of outdoor
unit PCB. (Refer to P. 194 ~ 195 for how to check)
Check the connection status of the connectors
Fan motor 1: relay connector or X1A, X2A of fan inverter
PCB. (A4P)
Fan motor 2: relay connector or X1A, X2A of fan inverter
PCB. (A8P)
Check the color of relay connectors
Fan motor 1: Both power supply wire and signal wire are
all white.
Fan motor 2: Both power supply wire and signal wire are
red in the PCB side and white in the motor side.
Cut the power supply OFF and wait for 10 minutes.
Check
if any connector is
disconnected.
Relay
connectors have
any connection
error.
Go on to the next page.
5HP
8HP
~
12HP
18HP
~
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
A3P A4P A8P