Mcu Branch Part Setup Error - Repeated Setup For The Same Address Over 3 Times - Samsung AM072BXV Series Service Manual

Troubleshooting
4-3 Appropriate Measures for Different Symptom (cont.)
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
Indoorunit
display
×
※ ● : ON ◑: Flash ×: OFF
Judgment
• The same indoor unit address was setup more than 3 times in MCU
Method
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 PBA
Quantity of
Indoor Unit
Indoor Unit: 3
Samsung Electronics
Filter/
Operation Defrost Timer Filter Operation Timer Turbo 24℃
MPI
× ◑ ◑ ×
Quantity of
MCU
MCU: 1
Cassette (4/Mini4 Way)
× ◑ ◑ ×
Branch
Wall-mounted (NeoForte)
× × ◑ ◑
27℃
×
89