Troubleshooting
4-30
Samsung Electronics
4-3-9 MCU branch part setup error – Repeated setup for the same address over 3 times
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.
Outdoor Unit PCB
Quantity of
Indoor Unit
Quantity of
MCU
Indoor Unit: 3
MCU: 1
Branch
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
•
The same indoor unit address was setup more than 3 times in MCU
Cause of
problem
•
MCU indoor unit address setting error