Troubleshooting
Samsung Electronics 93
4-3-10 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
MCUG㨰㋀G㉘㥉
ON
㐘⇨ὤ
㐘⇨ὤG㨰㋀
⺸㣄ẠG㇠㟝G㉘㥉
4 4 2 1 5 6
0
⺸㣄Ạ A
4
B
C D E
1
F
6
Branch
Indoor unit
Indoor unit address
MCU
address setup
Branch part use setup
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
Judgment
Method
• 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.
4-3 Appropriate Measures for Different Symptom (cont.)
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