Hi Dave. The Air, prior to moving it, was located on the table but raised several inches above on a mounting plate. I don’t think it’s likely that water splashed up into the unit, but I can’t be 100%. I just placed it back on the table for the purpose of showing you the mount it sits on (see pix below). I’ve also noticed some erratic behavior of the barometer, sometimes reading .11" high and other times quite close. I’m not sure what’s causing that and if it can somehow be related to the issue with RH.
I’m game for either replacing the Air unit or giving it more time to dry out, but as I pointed out above, the delta has actually increased, currently sitting at 17% as I write this. So if it’s a wet sensor, I’d expect the delta to decrease over time as opposed to the increase I’m seeing. I’ve also seen this same behavior before.