Samsung AM022FNQDEH/TK - Page 220

Troubleshooting
Samsung Electronics 4-75
4-4-31 MCU branch part setup error – non-installed address setup
t Indoor unit, with the assigned address on MCU, not installed.
Criteria
Cause of problem
t*GUIFSFJTBOJOEPPSVOJUUIBUJTOPUJOTUBMMFEBNPOH.$6SFHJTUFSFEJOEPPSVOJUT
Outdoor unit display
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.
Indoor unit display
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
×(Operation)
◑
(Timer)
◑
(Fan)
◑
(Filter)
×
(Defr ost)