Mcu Branch Part Setup Error - Non-Installed Address Setup - Samsung AM007FN1DCH/AA Service Manual

4-4-31 MCU branch part setup error – non-installed address setup
Outdoor unit display
Indoor unit display
Criteria
Cause of 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.
Samsung Electronics
◑(Timer) ◑(Fan)
×(Operation)
• If there is an indoor unit that is not installed among MCU registered indoor units
• Indoor unit, with the assigned address on MCU, not installed.
MCU BOX #0
OFF
4 4
Branch Sphere A B
Indoor
4
Unit
◑(Filter)
×(Defrost)
MCU Address Setup
MCU PCB
0
ON
Setup for Using
Branch Sphere
2 1 5 6
Indoor Unit Address
C D E F
1 6
Troubleshooting
4-65