Generac PWRcell › PWRcell ATS Controller

PWRcell ATS does not transfer to backup

manufacturer says

Applies to: PWRcell ATS 100A Non-Service Entrance, PWRcell ATS 100A Service Entrance, PWRcell ATS 200A Service Entrance

Symptoms

The PWRcell ATS never moves to backup when the grid drops, or never returns to utility
The mechanism should move down on inverter power (backup transfer) and up on grid power (return to utility)

The cause and the fix

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