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15.2.8 H33 (Indoor / Outdoor Misconnection Abnormality)
Malfunction Decision Conditions
The supply power is detected for its requirement by the indoor/outdoor transmission.
Malfunction Caused
Wrong models interconnected.
Wrong indoor unit and outdoor unit PCBs used.
Troubleshooting
Check indoor and outdoor
units model number.
Match the compatible
model.
No
For safety reason and to prevent component
breakdown, always switch off the power before
remove and connect the component.
Is the indoor and outdoor
model number matched?
Check the spare part numbers of the
indoor and outdoor unit PCBs and
compare with their Part Lists.
Matched compatibility?
Change for the specified
indoor or outdoor unit PCB.
Yes
No
Yes
Replace the indoor and
outdoor unit PCBs.
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