Samsung AM056FN2DEH Series - MCU Branch Part Setup Error - Non-Installed Address Setup

Troubleshooting
Samsung Electronics 453
4-4-33 MCU branch part setup error – non-installed address setup
1. How to check
Find an MCU that is composed as the following picture to carry out assembly of branch part again. After completing the re-setting,
press K3 button on the button to reset or turn it off to restart.
MCU BOX #0
MCU PCB
OFF
MCU address setup
ON
Indoor unit
Indoor unit address
Branch part use setup
4 4 2 1 5 6
0
Branch A
4
B
C D E
1
F
6
MCU BOX #0
Outdoorunit
PCB
MCU PCB
OFF
MCU address setup
ON
Indoor unit
Indoor unit address
Branch part use setup
4 4 2 1 5
5 1
6
0
Branch A
4
B
C D E
5
F
6
MCU BOX #1
MCU PCB
OFF
ON
1 3 7 9 0 0
1
Branch A B D E
07
F
1
MCU BOX #0
Outdoorunit
PCB
MCU PCB
OFF
MCU address setup
Indoor number setup MCU number setup
Indoor unmber setup MCU unmber setup
ON
Indoor unit
Indoor unit address
Branch part use setup
4 4 2 1 5
5 1
6
0
Branch A
4
B
C D E
5
F
6
MCU BOX #1
MCU PCB
OFF
ON
1 3 7 9 0 0
1
Branch A B D E
07
F
2
C
C
Outdoor unit display
Indoor unit display
Criteria
• If there is an indoor unit that is not installed among MCU registered indoor units
Cause of problem
• Indoor unit, with the assigned address on MCU, not installed.