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Error Code Troubleshooting (Diamante Series)

Decode and resolve errors for Diamante Series systems by using these troubleshooting guides and flowcharts.

Error code E0

The "E0" error codes indicate a communication fault between the indoor and outdoor units.

Error code E9/P0

The "E9” or “P0” error codes indicate an inverter drive error is present. The error code may display if the compressor or outdoor board is failing.

Error code FY

The "FY" error code indicates the system detects refrigerant leakage.

Error code PA for multi-zone Diamante Ultra Series systems

The “PA” error code for multi-zone Diamante Ultra Series systems indicates the units are experiencing a mode conflict.

Indoor unit displaying 0A code

The “0A” code indicates your Diamante Series system has been placed into “Generator” or “Gen” mode.