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18.3.3.19 Automatic correction of wiring/piping error:
Press the "check switch" on the outdoor unit PCB board 5 seconds until LED display "CE", which
mean this function is working, Approximately 5-10 minutes after the switch is pressed, the "CE"
disappear the wiring/piping error will be corrected, and wiring/piping is properly connected.
Check switch
LED display
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