Samsung AVXTJH028EE - Page 182

Troubleshooting
4-91 Samsung Electronics
4-5-32 MCU branch part setup error – Set as being used without connection to an Indoor unit
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.
t1JQFJTOPUJOTUBMMFEUPUIFJOEPPSVOJUXJUIBTTJHOFEaddress on MCU
Criteria
Cause of problem
t0DDVSTXIFO.$61*1&JTTFUBTCFJOHVTFEZFUOPUDPOOFDUFEUPBOJOEPPSVOJU
Outdoor unit display
Indoor unit display
MCU BOX #1
MCU PCB
OFF
ON
1 3 7 9 0 0
1
Branch A B C D E
0
F
(Operation)

◑
(Timer)

◑
(Fan)

◑
(Filter)


(Defrost)
$9;&6+B$BaLQGG 