Troubleshooting
Samsung Electronics 251
4-4-26 Communication error between main and sub Unit of outdoor unit or between outdoor units
-
Communication err or between outdoor units.
Refer to the judgment method below.
Indoorunit display
Judgment Method
Cause of problem
Outdoor unit display
Reset error (Key 3)
Check the outdoor unit with error.
(U200, U201, U202, U203)
Is the power supply normal?
15V, 5V
Check wiring of outdoor unit
communication cable.
Check K13 and K14 setup
options for outdoor unit.
Replace PCB.
Check the power
Change wiring or connect
Change settings
Yes
Yes
Yes
No
No
No
1.
Cause of problem
Essential Requirements before Changing PCB in Case of Communication Error: Refer to p.59
To Next Page
Loading...
