386
Troubleshooting
Part Name Contents
LEDs
LED1 Not used (Green)
LED2 This LED indicates the transmission status between the indoor unit and the master controller(Yellow)
LED3 This LED indicates the transmission status between the indoor unit and the outdoor unit(Yellow)
LED4 Power source for the I.U. PCB1(Red)
SEGs SEG1-3 Indicate alarm code and check parameters
DSWs
DSW1 Unit model setting
DSW2 Unit capacity setting
DSW3 Additional setting
DSW4 Additional setting
DSW5 Additional setting
DSW6 Fuse reset
DSW7 Not used
DSW8 Refrigeration system No. setting
DSW9 Indoor unit No. setting
PSWs
PSW1 Check mode
PSW2 Check mode
PSW3 Check mode
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