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Error code PA for multi-zone Diamante Ultra Series systemsUpdated 3 hours ago

The “PA” error code for multi-zone Diamante Ultra Series systems indicates the units are experiencing a mode conflict. Mode conflicts occur when one unit requests heat while another requests cool.

You can resolve this error by setting all the indoor units to either manual Cool or manual Heat mode.

Note: Avoid running the units on Auto mode, as it could cause this error.

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