Great question, but missing a lot of information so we can help you. What camper/motor home do you have? What year model? Since you posted in "electrical" this forum gets the general electric questions. You have a specific question, about a specific motor home I assume. You can go to the top of the page here, Right under the main banner. top left, find the tab that says "forums". Scroll down through that and see if your brand is listed.
Also on the long green line across the top of the page, you will find a search tab. (under the google search tab). You can use that to search for power steps, as there are several post on here regarding the power steps. Your question may have been answered.
Please take no offense, just trying to point you to the quickest answer.
2012 Ford F250 ext. Cab 4x4
2002 Jeep Wrangler Sahara
2008 Yamaha V-Star 650 Classic
2008 Work and Play 18LT