Switch at the door

Farmer Bob...You have the wrong idea about how the 'step switch' works. The switch WILL NOT stop the step from extending when the door opens. That will always happen. It even overrides the battery cutoff switch on many coaches (legal thing to minimize liability from people falling out of stairless coach). What the switch is for is to PREVENT the step from retracting every time the door shuts when you are set up at camp (save wear and tear on the step motor). It it's wired right, it will also get overridden and retract the step when you start the engine and the door is shut (so you don't drive off with the step out). Is the failure to disable the step the only reason you think the battery switch is bad? Until my latest Winnebago my older RVs have always killed the step with the battery cutoff switch. The Winne will extend the step ANY time the door opens, regardless of battery switch position (probably the industry standard now). The fire and propane detector also do not get cut off with the battery switch. If I didn't have a way to keep 110 to the coach when stored, I'd need to physically unhook the batteries to ensure they didn't get run down during a long sit. The magnet is your best bet. Lots of people do that.