Home generators
This section covers home standby generators, almost all of it Generac, plus a few pages that apply to any portable generator. There are four kinds of page here. Error-code pages each explain one Generac controller alarm — 1100 overcrank, 1300 low oil pressure, 2100 overload and the rest — with the reset as the manual words it and the checks an owner can make. Symptom pages start from what you see instead: a unit that won't start, or one that runs while the house stays dark.
Maintenance pages give the oil, maintenance kit, battery and owner's manual for a given model, and show where to find the serial number. Install pages compare interlock kits and manual transfer switches for connecting a portable unit to a panel, and mark where an electrician takes over.
If the controller shows a number, start with the Generac code list; if it shows nothing, start with the symptoms. Each page names the manual or support article it was built from. One RV generator page, for the Cummins Onan QG 4000, sits apart because its fault scheme has nothing in common with Generac's.
Sections
Brands
RV and portable units are a separate scope
Everything under Brands above is home standby equipment: a fixed installation, a transfer switch, and a Generac controller with four-digit alarm codes. An RV genset is a different machine with a different fault scheme, and its codes do not map onto the standby ones. GridComfort has one page in that scope so far — Cummins Onan QG 4000 fault code 36, the engine-stopped fault on the KYD series, with the six corrective actions Cummins publishes in its operator manual. It applies to the KYD Spec A–C range named on that page and to nothing else, including no Generac unit.