Generac Support, Knowledge and FAQ



We have no manuals for Generac. If you have one please send us a copy.


Table 1: Register Map Guide

Table 2: Modbus Registers

Table 3: Remapped Registers

Table 4: System Event Codes

Table 5: System Event Code Table



Who is Generac?
A:Since 1959, Generac has been designing and manufacturing backup power generators for residential, commercial and industrial applications. We have grown to be the world’s largest provider of residential backup generators, selling five times as many generators as all of our competitors combined. Generac’s broad product line ranges in output from 1800 watts to 9 megawatts, and are available through the industry’s largest network of independent generator dealers, retailers and wholesalers. For more information on Generac and its extensive line of backup power products, visit
Q:What is the difference between an automatic air-cooled generator and an automatic liquid-cooled generator?
A:The engines! Air-cooled generators come with engines that use fans to force air across the engine for cooling, while liquid-cooled generators use enclosed radiator systems for cooling, similar to an automobile. Generally, liquid-cooled engines are used on larger kW generators due to the larger engines required for the higher power output.
Q:What is “PSI” and “GPM,” and why are they important?
A:PSI is short for “pounds per square inch.” It is a measure of the water pressure coming out of the power washer. A typical garden hose dispenses water at about 50 PSI, and a coin-operated car wash provides about 700 PSI. A power washer, by contrast, typically dispenses water at several thousand PSI, depending upon the model.
GPM stands for “gallons per minute,” and describes how much water is flowing through the power washer.
You’ll find both of these ratings on a power washer, because they’re both important. Together, they provide your power washer’s cleaning power. PSI provides the “oomph” you need to lift dirt and grime, and GPM provides the necessary quantity of water to wash it away.
The real measure of a power washer’s cleaning power can be found by multiplying PSI by GPM. The higher the number, the greater the cleaning power. For example, a garden hose delivering water at 50 PSI and 5 GPM has a cleaning power of only 250. A power washer, however, delivering water at 2500 PSI and 2.3 GPM has a cleaning power of 5750.
Q:Where can I find a GENERAC dealer in the U.S. or Canada?
A:To locate a dealer near you, please refer to our Dealer Locator section on this Web site or call our Automated Dealer Locator (for U.S. locations only) at 1-800-333-1322.


Generac Gaseous Industrial Generator
Generac Software- Power Design pro
Generac Commercial Power Products Brouchers
How it Works?

If you liked this post;
  • Please consider subscribing to our RSS feed