Self-Diagnosis Method - Panasonic WH-ADF0309J3E5CM Service Manual

25.2

Self-diagnosis Method

25.2.1 Indoor/Outdoor Capacity Rank Mismatched (E16 / H12)
Malfunction Decision Conditions

During startup, error code appears when different types of indoor and outdoor units are interconnected.
Malfunction Caused

Wrong models interconnected.

Wrong indoor unit or outdoor unit PCBs mounted.

Indoor unit or outdoor unit PCBs defective.

Indoor-outdoor unit signal transmission error due to wrong wiring.

Indoor-outdoor unit signal transmission error due to breaking of wire 3 in the connection wires between the indoor
and outdoor units.
Troubleshooting
When abnormality indication starts again
Check the indoor and outdoor unit connection wires
Is there any wiring error?
Check indoor and outdoor units model number.
Is indoor unit and outdoor unit model numbers matched?
Check the spare part numbers of the indoor and outdoor unit
PCBs and compare with their Part Lists
Matched compatibility?
NO
YES
YES
247
For safety reason and to prevent
component breakdown, always switch
Caution
off the power before remove and
connect the component.
YES
Correct the indoor-outdoor unit connection wires
NO
Match the compatible model(s)
NO
Change for the specified indoor or outdoor unit
PCB
Replace the indoor and outdoor unit PCBs