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15.5.12 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
For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.
● Replace the indoor and outdoor unit PCB.
YES
● Match the compatible model (follow specification)
NO
NO
When abnormality indication starts again.
Check indoor and outdoor units model number.
Is this indoor and outdoor unit model number matched?
Change for the specified indoor or outdoor unit PCB.
Check indoor and outdoor PCB part number and compare if they
matched part list.
Caution
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