Troubleshooting
9-76Samsung Electronics
■
: MCU Dip switch setup error
Outdoor unit display
Indoor unit display
Judgment method
Causes - Dip switch for indoor unit setting was off position even though indoor unit was 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 OFF even though indoor unit
was installed.
Set the switch of branch sphere
not used to ON.
Yes
No
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