Service Manual

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[C06 error] (TCC-LINK central controller)

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 remote controller?

Is the network address changed

from the remote controller?

Check connection of A and B terminal blocks.

Correct communication line of remote controller.

∗1

Is connection of connector normal?

Check power supply transformer on

TCC-LINK adapter P.C. board (MCC-1440).

Defect → Replace

Can the other indoor units

be normally controlled from the central controller?

Or is the operation status of indoor unit reflected?

∗1

TCC-LINK central:

CN51 of TCC-LINK adapter P.C. board (MCC-1440) and CN050 of indoor P.C. board

Eliminate noise, etc.

Check indoor P.C. board (MCC-1570).

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