We're not sure the washer in our new to us Ventana has ever been used. The lady we bought it from said she never used it. The original owners could not remember and I can't contact the middle owners but I doubt that they did based on what we were told.
The sticker on the front that says "Remove Drain Cap Before Using" is still there. Is the "drain cap" on the washer & was taken off to attach the drain hose?
If so, then I think it's been done from what I could tell by looking behind the washer through that little door in the closet.
Where else should we check?
I would rather not flood the coach!