ATS (EATON) does not transfer to generator power during power outage!

[handsup981]

Hi everyone,

I have a problem with the Eaton ATS and need some help. Eaton ATS does not transfer to generator power during utility power outage. ATS just sends signal to run the generator. Generator runs but the ATS does not transfer to generator power (Generator runs and cools down afterwards). ATC-300 controller display shows an alarm “Check External Wiring”. Anyone has any ideas about this?

Any help is appreciated. Thank you for your help.