Alarm code
0C
Incorrect outdoor main unit setting.
• The RUN indicator flashes and the ALARM indication is displayed on the remote control switch.
• The unit no., the alarm code and the unit code are alternatively displayed in the temperature setting section and the unit
no. and alarm code are displayed on the outdoor unit's PCB1 display.
Yes
No
Yes
No
Is DSW6 setting for
outdoor unit B and C correct?
(DSW6: outdoor unit address setting)
Set DSW6 correctly for
outdoor unit B and C and
reset the power
supply.
Are 4 (four) or more
outdoor units connected to
O.U.~O.U. transmission terminal?
Correctly connect operating line
between outdoor unit and outdoor
unit and reset the power supply.
Abnormality of PCB1 in
outdoor unit A
Unit A
(Main)
Unit B
(Sub)
Unit C
(Sub)
Outdoor Unit
PCB1: Control PCB in Outdoor Unit
O.U.: Outdoor Unit
(Sub): Secondary unit(s).
8 Troubleshooting
192
SMGB0065 rev. 1 - 12/2010
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