Overload light is on - Generac Power Systems Generac 5793 Ix 2000 Watt Portable Inverter Generator

Is red light on for overload or for battery?
If on overload, try reducing the load on the UPS. If red light on overload persists buy a new UPS (overload fault hard to repair).

Red light on battery - replace the batteries.

Red light on boost or buck, may mean that the nominal voltage of ups and the limits need to be changed/corrected.

Check all the fuses. Sounds like the inverter section has gone south

Could be overloaded. Use less clothes to start. Load sensing will not let an overloaded washer to continue.

You might want to post this in a different section. This is the computer laptop section.

the manual says each unit has a maximum load of 3 amps (abt 7 one hundred mini light sets). when ANY INDIVIDUAL outlet is overloaded,ALL lights will turn off and an outlet overload message (OL) will be displayed. To reset,unplug unit,then unplug some of the lights in the outlet that appears to be overloaded and plug unit back in

Sounds like a short in the brake light circuit that overloads the alternator.
I'd check / replace the bulbs for brake lights.

I had this happen once...
When you brake...your brake lights come on.
BUT, because the bottom of the bulb or bulbs have shorted, this provides a path for your running lights and dashlights to come on as well and the short tends to overload the alternator causing the flickering battery light.

Because the alternator is taking an overload like that...I'd have it and the battery checked for proper performance.

I'll bet the back bulbs or bulb sockets need attention...

Hope this helps...

Unplug immediately and wait 20 mins to see if motor will "cool-down"...when plugged back in hopefully the Overload light will be OFF....unless you have it completely jammed up in which case try running it in reverse if the overload light is OFF.
If the overload light wont go out you may need pcb...contact Royal at 1-800-524-0799 for further parts assistance.

Check all MOSFET.

Internal fault.

Check the Ground Fault Indicator circuit breaker for triping, and look for the high limit on generator. Reset the main breaker by triping it full right and then back. Vitally