Mcu Branch Part Setup Error_Set As Being Used Without Connection To An Indoor Unit - Samsung AM080 XV Series Service Manual

Troubleshooting
4-3-13 MCU branch part setup error – Set as being used without connection to an Indoor unit
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 • Occurs when MCU PIPE is set as being used, yet not connected to an indoor unit
Cause of
• Pipe is not installed to the indoor unit with assigned address on MCU
problem
1. How to check
Adjust the Dip switch that sets up the use of MCU branch part to 'Not-Used'. After completing resetting, press the outdoor unit's
K3 button to reset or turn off to restart.
4-30
× ◑ ◑ ×
MCU BOX #1
1 3
B
Branch A
Cassette (4/Mini4 Way)
× ◑ ◑
MCU PCB 1
ON
OFF
7 9 0 0
C D E
0
Wall-mounted (NeoForte)
× × × ◑
F
Samsung Electronics
27℃
◑ ×