76
No
Yes
No
No
Yes
Yes
[99] Mismatching line of remote controller terminal
whether the
wiring of remote controller A, B, C terminal
is correct
Modify wiring
Whether there
is broken wire or improper contact of
the connectors
Modify the connection of the
connectors
Whether it runs in group
Whether
the indoor unit group running in group
has unit group setting
No.1
Set one unit groupto No.1
Whether the
unit group setting No.1
is repeated
Avoid the repeated unitgroup setting No.1
Whether the
unit group is set to No.1
Set the unit group
to No.1
Yes
No
Yes
No
No
Whether the indoor unit runs
Whether the
LED (green) D32 of serial
signal sent to the wire controller that
the indoor baseplate displayed
flashes
Yes
Yes
No
No
Check indoor PCB,if improper, replaceit
Whether the
LED (orange) D31 of serial
signal received by the remote controller
that the indoor PCB flashes
Check the remotecontroller PCB, ifimproper, replace it
No
Yes
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