Doorbell operates steps??

Recently I have had the experience of the doorbell operating the Kwikee steps. When parked in RV spot, engine off, steps extend on opening the door and stay extended. This is normal. The weird thing is that if you press the doorbell, the steps retract. The steps stay in even when the door is opened. You have to toggle the step button inside to extend the steps again, and then everything goes back to normal until the doorbell is depressed. Anybody had this issue, hints where to look??