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Daikin / Model series

Daikin Sky Air concealed ceiling split systems error codes

Commercial Sky Air split systems using FNA-A and FNA-A9 concealed ceiling indoor units.

Grounded in the official Daikin FNA25~60A2VEB(9) installer reference guide error tables for commissioning and troubleshooting.

FNA25A2VEBFNA35A2VEBFNA50A2VEBFNA60A2VEBFNA25A2VEB9FNA35A2VEB9

Brand

Daikin

Model series

Sky Air concealed ceiling split systems

Guides in this series

6

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A0

The system has detected a refrigerant leak.

E3/E4/L8

The unit is protecting because stop valves are closed or airflow is blocked.

U0

The system sees closed stop valves.

U2

The power supply is out of range or has a phase problem.

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