Mcu Branch Part Setup Error - Set As Being Used Without Connection To An Indoor Unit - Samsung AM080FXWANR Service Manual

Troubleshooting
4-3 Appropriate Measures for Different Symptom (cont.)
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
Indoorunit
display
×
※ ●: ON ◑: Flash ×: OFF
Judgment
• Occurs when MCU PIPE is set as being used, yet not connected to an indoor unit
Method
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.
Samsung Electronics
Filter/
Operation Defrost Timer Filter Operation Timer Turbo 24℃
MPI
× ◑ ◑ ×
MCU BOX #1
OFF
1 3
B
Branch A
Cassette (4/Mini4 Way)
× ◑ ◑ ×
MCU PCB 1
ON
7 9 0 0
C D E F
0
Wall-mounted (NeoForte)
× × ◑ ◑
27℃
×
96