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Replace fan motor.
Check indoor P.C. board.
Defect → Replace
Check the corresponding
indoor unit and outdoor unit.
Is group operation carried out?
Is the condenser normal?
Isn’t there mechanical lock
of the fan motor?
Is there check code
on the follower unit of
main/sub remote controllers?
Isn’t there
any connection error/disconnection
of CN076 connector?
Check indoor P.C. board.
Defect à Replace
Correct wiring circuit
of the connector connection.
Replace condenser.
Replace fan motor.
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
[b7 error] (Central controller)
[P01 error]