Troubleshooting
Samsung Electronics9-75
■
: MCU Dip switch setup error
Outdoor unit display
Indoor unit display
Judgment method
Causes - Dip switch for indoor unit setting was on position even though indoor unit was not connected.
Find indoor unit and MCU address that occurred
communication error,
through outdoor unit PCB or MCU PCB.
Check indoor unit
installation status to MCU.
Replace MCU PCB.
DIP switch for indoor unit
set ON even though indoor unit was
not installed.
Set the switch of branch sphere
not used to OFF.
Yes
No
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