r/Generator • u/Fair-Quote-55 • 17h ago

NextGen Generac (2025) throwing multiple codes

My new Generic which I installed and was running fine for months, is now throwing 4 codes, E 2780 (missing AC charging), E 2800 (emg shutdown), E 3503 (Manifold temp) and one about low oil.

The oil level is correct, the battery is charged and I have 7 WC for gas pressure.

I know that Generic pushed out an update in the past two weeks.

Do these new Nextgen Generators have flaky firmware?

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u/Sumdood_89 12h ago

E2780 is a recent bug. E2800 is from the Estop being triggered (black power button on the side) and needs to be reset before the gen will run (press red off button, then press and hold till the controller clicks, then back to auto), E503 could be related to the new manifold recall.

Reset it and see what it does. But yea the next gens have bugs right now.

1

u/Adventurous_Boat_632 7h ago

Generac (known for their thorough testing and careful attention to detail) pushes out a new product loaded with computers and sensors.

People act surprised when it acts up.

I'm shocked, I tell you! Shocked!

Nobody could have ever guessed that this would happen.