Table of Contents
Advertisement
4-4-34 MCU branch part setup error – Set as being used without connection to an Indoor unit
Outdoor unit display
Indoor unit display
×(Operation)
Criteria
• Occurs when MCU PIPE is set as being used, yet not connected to an indoor unit.
Cause of problem
• Pipe is not installed to the indoor unit with assigned address on MCU.
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
◑(Timer)
◑(Fan)
◑(Filter)
MCU BOX #1
MCU PCB
OFF
1
3
7
9
B
C
D
Branch A
×(Defrost)
1
ON
0
0
E
F
0
Troubleshooting
4-77
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
