Hi. Hope you enjoy your 34.4. That's the same model we purchased in April of this year and after a few minor repairs and steering stabilizer added we love it.
Your shut off valve is in the access panel below the refrigerator and to the right...directly below the pantry. Mine was shut off, too. When I turned it on the connection leaked. I just tightened it about a 1/2 turn and all was good.
Let me know if you have any other issues...kind of nice to talk to someone with the same model.
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