Troubleshooting
4-74 Samsung Electronics
4-4-30 MCU branch part setup error – Repeated setup for the same address over 3 times
t MCU indoor unit address setting error
Criteria
Cause of problem
t The same indoor unit address was setup mor e than 3 times in MCU
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
Setting error
Indoor unit
Indoor unit address
Branch part use setup
4 2 2 2 5 6
0
Branch A
4
B
2
C
D E
5
F
6
×(Operation)
◑
(Timer)
◑
(Fan)
◑
(Filter)
×
(Defr ost)
To Next Page
Loading...
