I could not get the rear access in the rear bathroom floor open on our 42E. Does the cabinet panels need removed as well? or can the access be opened without taking the cabinet apart?
Not sure about your 42E, mine can be removed without taking any cabinets apart. Mine can sometimes be difficult to remove, I think they get stuck down from standing on them. Make sure you have unlocked them - take a look from underneath if possible. I have used a flat pry bar to carefully "encourage" the access panels to come up.
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Albert Irusta
2011 Itasca Meridian 34Y
2006 Jeep Liberty