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25.2.20 Unspecified Voltage between Indoor and Outdoor (H33 / P05 / H95)
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
Is the indoor and outdoor unit model number matched?
Check indoor and outdoor units model number
Check indoor and outdoor PCB part number and compare
if they matched part list.
Change for the specified indoor or outdoor unit PCB.
●
Replace the indoor and outdoor unit PCB.
For safety reason and to prevent
component breakdown, always switch
off the power before remove and
connect the component.
NO
YES
NO
Caution
●
Match the compatible model (follow specification)