Troubleshooting Brand: Generac

Built-in battery charger is failing or not receiving power. Battery will drain.

Engine coolant too hot. Check coolant level, radiator, thermostat, and fan.

Generator has reached a maintenance interval. Schedule service to maintain warranty.

Engine failed to start after multiple crank attempts. Usually fuel pressure, air in lines, or weak battery.

An emergency stop (E-stop) switch was activated or left in the OFF position.

Auxiliary Shutdown — Error Code 2800 Error Code 2800 indicates an Auxiliary Shutdown — the generator’s control board has detected an open emergency stop (E-stop) circuit and halted the unit to prevent unsafe operation. Despite the alarming alert, this is typically one of the most straightforward issues to resolve. E-stop switch left in OFF position after maintenance Accidental bump flipping a switch to OPEN Dirty, corroded, or damaged switch contacts Loose or broken wiring in the safety circuit