Water heater access help needed

[7421f]

I am trying to get to my water heater that is located under the fiberglass steps leading into the main salon on my 11 meter express. I have found and removed the screws from the base into the floor and the steps won't budge. I have been unsuccessful in finding any other fasteners holding the steps in place. There has to be something I'm missing.....Anyone?

[Landlocked]

May be (probably is) totally different than the steps in my 11 Meter Sedan. They have one screw on the top step that goes vertically into a cleat beside the dinette. It is located under the carpet, stbd side of the top step. However, I don't have any screws at the base so, again - probably different than yours.