Hi Jerry, I don't see the start-up amps mentioned in the documentation. The Coleman unit comes from Airxcel, Inc. however, and there is a lot of documention on their website in PDF format. To get it, go to http://www.rvcomfort.com/rvp/products/rooftop/Stan_mach3_1.php. The PDF file links are in the box on the left side of the web page. -Tom