50
a. Outdoor Unit Board (PCB1)
Part Name
Function Information
LEDs
LED1 (Red)
Power Source Indicator for Main Board (Low Voltage)
Normal Condition: Activated /ON Abnormal Condition: Deactivated /OFF
LED2 (Green)
It indicates the communication state between the Main Board and Driven Board.
Normal Condition: Flashing Abnormal Condition: Deactivated /OFF
LED3 (Yellow)
It indicates the communication state between the indoor unit and outdoor unit.
Normal Condition: Flashing Abnormal Condition: Deactivated /OFF
LED4 (Red)
Power Source Indicator for Outdoor Unit PCB (280VDC)
Normal Condition: Activated /ON Abnormal Condition: Deactivated /OFF
LED6 (Red)
Power Source Indicator for Outdoor Unit PCB (from PCB2)
Normal Condition: Activated /ON Abnormal Condition: Deactivated /OFF
SEG SEG1 It indicates: “Alarm”, “Protective Safety Device has Tripped” or “Checking Items”.
Denition of DIP Switch:
No. DIP Switch Code Denition No. DIP Switch Code Denition
1 DSW1 Test Run 7 PSW1 Manual Defrosting
2 DSW2 Function Setting 8 PSW2 Decrease ▼
3 DSW3 Model Setting 9 PSW3 Increase ▲
4 DSW4
System Address Setting:
Double Digit
10 RSW1
System Address Setting:
Single Digit
5 DSW6 Function Setting 11 SEG1 7-segment Display
6 DSW7 Function Setting 12 TP1 Test Port for Factory
TROUBLESHOOTING
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