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48
12.4.12 H33 (Unspecified Voltage between Indoor and Outdoor)
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.
Indoor unit or outdoor unit PCB defective.
Troubleshooting
When abnormality indication starts again.
For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.
Check indoor and outdoor units model number.
Check indoor and outdoor PCB part number and compare if
they matched the part list.
NO
NO
Is the indoor and outdoor unit model number matched?
● Match the compatible model (follow specification).
YES
● Replace the indoor and outdoor unit PCB.
Change for the specified indoor or outdoor unit PCB.
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