Mcu Branch Part Setup Error-Repeated Setup For The Same Address Over 3 Times - Samsung AM080xXV Series Service Manual

Troubleshooting
4-3-9 MCU branch part setup error – Repeated setup for the same address over 3 times
Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo 24℃
Indoorunit
×
display
※ ●: ON ◑: Flash ×: OFF
Criteria • The same indoor unit address was setup more than 3 times in MCU
Cause of
• MCU indoor unit address setting error
problem
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
Indoor Unit: 3
4-30
× ◑ ◑ ×
Quantity of
MCU
MCU: 1
Cassette (4/Mini4 Way)
× ◑ ◑ ×
Branch
Wall-mounted (NeoForte)
× ×
◑ ◑
Samsung Electronics
27℃
×