Samsung AM080FXWANR, Service Manual

Page: 100 / 295

Troubleshooting
Samsung Electronics 97
4-3-14 MCU branch part setup error – Connect an Indoor unit to a branch part not being used
1. How to check
Check the actual use of the branch part. If it is used, turn on the Dip switch for branch part setup. After completing resetting, press
the outdoor unit's K3 button to reset or turn off to restart.
MCU BOX #1
MCU PCB
OFF
MCU add r e ss s e tup
ON
In d oor unit
In d oor unit add r e ss
Br a n c h p a rt us e s e tup
4 4 2 1 5 6
0
Br a n c h A
4
B C D E
5
F
6 2
Outdoor unit
display
Indoorunit
display
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Operation Defrost Timer Fan
Filter/
MPI
Operation Defrost Timer Filter Operation Timer Turbo
24
℃
27
℃
× × ◑ ◑ × × ◑ ◑ × × × ◑ ◑ ×
※ ● : ON ◑ : Flash ×: OFF
Judgment
Method
• Occurs when MCU PIPE is turned off, yet an indoor unit is registered
Cause of
problem
• Indoor unit connection to the unused branch part
4-3 Appropriate Measures for Different Symptom (cont.)