Troubleshooting
Samsung Electronics
4-29
4-3-8 MCU branch part setup error – inconsecutive connection with the use of 2 branch parts
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
Setting error
Indoor unit
Indoor unit address
Branch part use setup
4
2
1
2
5
6
0
Branch A
4
B
2
C
D
E
5
F
6
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
Outdoor unit
display
Indoorunit
display
Duct, Cassette (1/2 Way),Console, Celing
Cassette (4/Mini4 Way)
Wall-mounted (NeoForte)
Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo 24
℃
27
℃
×
×
◑
◑
×
×
◑
◑
×
×
×
◑
◑
×
※ ●
: ON
◑
: Flash ×: OFF
Criteria
•
When 2 branch parts are used for one indoor unit without connecting them consecutively.
Cause of
problem
•
Branch part assembly error