143
Troubleshooting
Alarm
Code
Incorrect Outdoor Unit Address Setting
Alarm
Code
0c
Incorrect Setting of Main Outdoor Unit
● The RUN indicator (Red) is ashing
● The indoor unit number, the alarm code, the unit model code and the connected number of indoor units are displayed on
LCD. Meanwhile, the indoor unit number and the alarm code are displayed on the 7-segment of outdoor unit PCB.
● The RUN indicator (Red) is ashing
● The indoor unit number, the alarm code, the unit model code and the connected number of indoor units are displayed on
LCD. Meanwhile, the indoor unit number and the alarm code are displayed on the 7-segment of outdoor unit PCB.
No
Yes
No
Yes
Yes
Is DSW6 setting for
outdoor unit B, C and D
correct?
(DSW6: outdoor unit address setting)
Set DSW6 correctly for
outdoor unit B, C and D and
reset the power supply.
Are 5 or more outdoor units
connected to transmission terminal
between outdoor units?
Correctly connect operating line
between outdoor unit and outdoor
unit and reset the power supply.
Correctly connect wiring between
outdoor unit and outdoor unit and
reset the power supply.
Is operating line between outdoor
unit and outdoor unit connected
INCORRECTLY?
No
Abnormality of O.U. PCB in
outdoor unit A
Unit A
(Main)
Unit B
(Sub)
Unit C
(Sub)
Outdoor Unit
Yes
No
Yes
No
Is DSW6 setting for
outdoor unit B, C and D
correct?
(DSW6: outdoor unit address setting)
Set DSW6 correctly for
outdoor unit B, C and D and
reset the power supply.
Are 5 or more outdoor units
connected to transmission terminal
between outdoor units?
Correctly connect operating line
between outdoor unit and outdoor
unit and reset the power supply.
Abnormality of O.U. PCB in
outdoor unit A
Unit A
(Main)
Unit B
(Sub)
Unit C
(Sub)
Outdoor Unit
0B