Samsung AVMKH020EA4 Service Manual page 188

11-1-1 Initial tracking (communication check) - E2 indicated if abnormal
1. When the power is on, the MICOM of outdoor unit check the
indoor units, wired remote controller and transmitters
installed in the same system, which is called as Tracking.
1) The left side display shows the address of indoor unit with which the
outdoor unit is trying to communicate.
(0-1-2- . . . -d-E-F)
2) The right side display shows the address of indoor unit responding to the
communication.
3) The right side display displays together when the related indoor unit
address displays at the left side.
(For example, if there is 4 sets of indoor units having the address of
0, 1, 2, 3 at the outdoor unit, and when the left side display trying to
communicate to 0 -1-2- ... d-E-F, the right side displays 0-1-2-3 only
when the left side is 0-1-2-3.)
2. To check the numbers of indoor unit connected with outdoor unit by use of indoor unit
numbers setting switch.
I Installed indoor unit numbers setting switch
I
Example) Please adjust the arrow location set '3' as follow as figure, if installed indoor unit numbers
is 3 ea.
Installed indoor
units numbers
Switch arrow location
3. If the numbers of indoor units checked through installed indoor unit number setting switch
do not match with those during tracking, the display shows Er and E2 alternately.
Samsung Electronics
Indoor unit numbers Reset key
1 2 3 4 5 6
1 2 3 4 5 6
Display
7 8 9 10 11 12 13 14 15 16
7 8 9 A B C D
Troubleshooting
Left Right
Display of outdoor unit
E F 0
11-2