Please mount the included magnetic ring
Check if the communication line of indoor unit is
connected？
Measure if the communication line is through?
Check if the communication line of indoor and
outdoor unit is connected c orrectly?
Check if the two ends of communication line are
mounted with magnetic ring?
Check if the outdoor unit is electrically powered?
If the address codes of indoor units in the same
system are repeated?
If the address code of wired controller complies with
the address code of the connected indoor unit?
Communication error
Please supply power to the outdoor unit
Change the repeated address codes
Check the orientation of plug and socket
Replace the communication line
Check the orientation of plug and socket
Change the address code of wired controller
YES
NO
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
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