Panasonic 2WAY Multi - E24 Communication Failure between Outdoor Units (for Only W MULTI

IV–55
E24 Communication Failure between Outdoor Units (for only W MULTI)
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Error detection method
An Outdoor Communication Unit Failure is assumed when communications between outdoor units in the same
refrigerant system are not possible for 2 minutes.
• An outdoor unit address has not been properly assigned.
• Outdoor unit power is OFF.
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Troubleshooting
1
Power
supply,
wiring
1-1
Have outdoor unit addresses and outdoor unit and number of
connected outdoor units been properly entered?
Yes 1-2
No Enter the data correctly.
1-2 Have all outdoor units in the same system been turned on?
Yes 1-3
No Turn power ON
1-3
The indoor/outdoor operation wiring may not be connected between the indoor unit and
outdoor unit.
Check wiring connections on indoor/outdoor operation wiring.
GHPtroubleshooting.indbIV‒55GHPtroubleshooting.indbIV‒55 2012/11/2611:20:112012/11/2611:20:11