Generator fails to start automatically during a utility outage but starts manually

Safety: Be aware that restoring AUTO mode can cause an unexpected start. Ensure the area is clear.

• Check controller mode: Confirm the CAT controller is set to AUTO, not OFF or MANUAL.
• Review settings: Navigate the controller menus to verify that auto-start and exercise functions are enabled and correctly scheduled.
• Test ATS start signal: Simulate a utility failure (per CAT and site procedures) and check if the controller logs a start request. If not, inspect the start signal wiring from the ATS.

If the generator starts manually but never automatically despite correct settings and wiring, the controller or ATS logic may be faulty and should be checked by a technician.