142
Troubleshooting
Alarm
Code
0A
Abnormal Transmitting between Outdoor Units
● 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 operating line between outdoor
unit A and outdoor unit B connected
to H-NET transmission terminal?
Is operating line between outdoor
unit A and outdoor unit C connected
to H-NET transmission terminal?
Is operating line between outdoor
unit and outdoor unit connected
INCORRECTLY?
Correctly connect wiring between
outdoor unit and outdoor unit and
reset the power supply.
No
Abnormality of O.U. PCB in
outdoor unit A
Connect operating line between
outdoor unit A and outdoor unit B
to transmission terminal between
outdoor units.
Also, reset the power supply.
Connect operating line between
outdoor unit A and outdoor unit C
to transmission terminal between
outdoor units.
Also, reset the power supply.
Unit A
(Main)
Unit B
(Sub)
Unit C
(Sub)
Outdoor Unit
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