Mcu Branch Part Setup Error - Inconsecutive Connection With The Use Of 2 Branch Parts - Samsung AM017HN1DEH/EU Service Manual

4-4-31 MCU branch part setup error – inconsecutive connection with the use of 2 branch parts
Outdoor unit display
Indoor unit display
Criteria • When 2 branch parts are used for one indoor unit without connecting them consecutively.
Cause of problem • Branch part assembly error
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.
Samsung Electronics
MCU BOX #0
OFF
4 2
Branch A B
Indoor unit
4 2
MCU
address setup
MCU PCB
0
ON
Branch part use setup
1 2 5 6
Setting error Indoor unit address
C D E
5
F
6
Troubleshooting
355