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Troubleshooting
4-4-37 MCU branch part setup error – Connect an Indoor unit to a branch part not being used
Outdoor unit display
Indoor unit display
Criteria
Cause of problem
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.
262
×(Operation)
◑(Timer)
◑(Fan)
MCU BOX #1
4
B
Branch A
Indoor unit
4
◑(Filter)
×(Defrost)
MCU address setup
MCU PCB
0
ON
Branch part use setup
OFF
4
2
1
5
6
Indoor unit address
C
D
E
2
5
F
6
Samsung Electronics
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Table of Contents
Troubleshooting
