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[C06 error] (1:1 model connection interface)
Check central controller.
Defect → Replace
Is there no noise source?
Did a power failure occur?
Is not the source power supply turned on?
Is there no connection error of power supply cable?
Are A and B communication lines normal?
Are U3 and U4 communication lines normal?
Correct communication line.
Can the indoor unit be normally controlled
from the wired remote controller?
Is the network address changed
from the wired remote controller?
Check connection of A and B terminal blocks.
Correct communication line of remote controller.
∗1
Is connection of connector normal?
Check the power supply transformer of
1:1 model connection interface (MCC-1440).
Defective → Replace
Can the other indoor units
be normally controlled from the central controller?
Or is the operation status of indoor unit reflected?
∗1
In case of 1:1 model connection interface
1:1 model connection interface (MCC-1440) CN51 and indoor P.C. board CN050.
Eliminate noise, etc.
Check indoor P.C. board (MCC-1402).
Defect → Replace
Clear the check code.
Turn on the source power supply.
Correct power wiring.
Correct connection of connector.
Uncontrolled
(Same to others)
Uncontrolled
YES
YES
YES
NO
YES
NO
YES
NO
YES
NO
NO
YES
YES
NO
YES
NO
YES
NO