Generator Error Codes

A generator error code tells you why the generator shut down or won’t start, such as overcrank, low oil pressure, overspeed or a wiring fault. Many codes need a simple check of fuel, oil or the battery before you clear the alarm.

These guides cover Generac home standby generator codes, with the meaning, safe checks, how to clear the alarm and when to call an authorized dealer. Carbon monoxide, gas and electrical safety steps come first in every article, and code meanings are checked against Generac’s own manuals and support pages.

Start here:

Generac Error Codes

A home standby generator installed on a pad beside the outside wall of a house

Generac Error Codes: Full List with Meanings and Fixes

Every common Generac home standby alarm code explained, from 1100 overcrank to 2800 auxiliary shutdown, with safe owner checks and when to call a dealer.