Product Information

This article provides guidance on the oil requirements and maintenance tasks for Generac air-cooled home standby generators. Generac recommends the use of 5W-20 full synthetic oil for all home standby generators, but owners can also use SAE 30, 10W-30, or 5W-30 synthetic oil. Oil changes are necessary for the generator engine and this...

Home standby generators have two modes: Manual and Automatic. In Auto mode, the controller starts the generator during a utility outage and signals the transfer back to utility power when it returns. To enable Auto, press AUTO on the controller (steps shown for both Power Zone 200 and Evolution panels), then confirm status via the green...

For specific battery size information, check the generator's User Manual or check the Battery Type Section of your generator's product overview on the Online Product Lookup ​​​​​​​tool at https://www.generac.com/service-support/product-support-lookup.

This article explains how to identify the Costco-exclusive Guardian by Generac 22 kW and 25 kW home standby generators. It also explains how these models differ from other Next Generation products, including the lack of extended warranty options, Smart Exercise, and ecobee integration.

In a Generac Home Standby Generator installation, control wires play an essential role in allowing proper communication between the generator, transfer switch, and utility power source. The N1/N2, T1, 23/194, and 0/DC Common wires are key control wires that must be properly connected for optimal performance, and regular maintenance checks...

This article explains how to identify a Generac industrial product using its serial number, model family, Generac product listings, kW rating, and product type. It also explains the difference between industrial and residential product support and directs industrial generator, mobile generator, light tower, and pump owners to the...

This article explains what the green, yellow, red, and blue LED lights mean on Generac Next Generation and Guardian Series air-cooled standby generators. It clarifies the difference between maintenance reminders, non-critical warnings, and alarm codes, helping customers understand why a yellow maintenance light or red fault light may...

This article explains which engine oil to use in a gas-powered pressure washer, including oil recommendations for the break-in period, temperature-based viscosity guidance, oil-change intervals, engine oil capacities, and specifications for selecting a high-quality replacement oil.

This article is a guide to new home standby generator owners who inherit an existing unit through a new home purchase. It covers understanding the current condition and key details such as transferring ownership, maintenance, and warranty status. This guide will also help you navigate accessing manuals, understanding maintenance, and...

Generac's residential and commercial home standby generators should not be used for prime power (the only power source) for a home. Home standby generators are intended to supplement utility during brief power outages. Generac does offer industrial generators that are capable of operating as a prime power source.