Recently bought a "dead" ZNA 50 for the enclosure (it was submerged under water). Thing is, it came back to life after a night in the oven @ 140 degrees F. So now I still need an enclosure for my DNA 40 board. Good problem to have, actually.
I would still open it up and give it a quick alcohol bath. Not soak just a dip and blow out the excess to make sure there is no trapped water in the electronics.