Why not call Samsung. Don't ask for a recommendation, just ask whether there is danger in shutting off the water. I can't see how it can cause any problems, but it is best to get advice straight from the manufacturer.

Won't hurt it to turn off the water supply.

Thanks. Am I over-worrying by turning off the water intake? Do you guys normally leave it on when you're out of town? Someone will be here on and off, but I still worry about the water dispenser potentially flooding.

We recently had our water hooked up to our fridge and two weeks later I woke up with a huge puddle of water near the fridge and water soaked into the basement. The old POS GE Profile Range hiccupped and I was home alone. It was a nightmare hour trying to get the water off - had to eventually turn off water to the entire house because it wouldn't stop coming out. So, if it were me and I recently had a fridge hooked up, I'd definitely turn the water off.

That's one 'upgrade' we haven't turned back on. I think we'll just need to wait until we get a new fridge.

You are really asking two questions (1) should the water to the fridge be turned off and (2) should the water to the house be turned off. Only Samsung can tell you about its appliance; however, the poster who told you to be sure that the automatic icemaker isn't going the entire time is absolutely correct. But I don't think that you should shut off the water solely to this refrigerator. You should shut off the water to the house, why? Because if something springs a leak (and there is no reason a brand-new refrigerator line should spring a leak but many older pipes may spring a leak) only the water in the pipes and the hot water heater will drain into the house, something between 30 and 100 gallons of water, if the mainline is on literally thousands of gallons can drain into the house....

Here is a link that might be useful: Pre-vacation checklist

Yes on the water - and on the icemaker. And if you're in a cold climate, consider draining the pipes and pouring RV antifreeze into the traps, especially in places where pipes run along exterior walls.
If you're keeping the heat on, do leave the thermostat at 50-55 F. Modern fridges get confused with exterior temps in the 40-45 degree range. If you're turning the heat down, empty the fridge and unplug it.

I have a 24 year-old Hotpoint fridge and the only time the line leaked was when a painter rolled the fridge out to paint its enclosure a few years ago. It's never occurred to me to shut off the water just to the fridge when I go out of town.

I leave my heat running, but turned down when I go out of town in the winter. I have well water and I normally shut off the well pump when going out of town for extended periods. My thought is that there's a small amount of water in the pressure tank that can be supplied to the boiler if needed. If, by chance, a pipe freezes or leaks, there might be some water damage but hopefully not a lot. I also had a shutoff valve installed after the water branches off to the boiler and sometimes shut this off as well.

It never occurred to me to shut the ice maker off, but it sounds like a good idea.

I always turn off my water when I leave the house for a time since it is very easy for me. I also turn off the electric hot water heater because it too is simple.

As Mistman points out, you should turn off the switch to the icemaker as well. I neglected that step before a trip and returned to a broken icemaker and had to replace it. I looked at my manual after-the-fact and saw that turning off power to the icemaker was required if turning off the water.

Hmm I never thought of turning off the icemaker when shutting off house water for a trip. Probably a good idea! Also as said, turn off the water to the whole house when you are gone for a decent while.

Funny thing you mention this - we had an old Whirlpool and some valve failed. We turned off the water to the house and for some reason - the water from upstairs flowed through the valve and into the basement.
We have a newer fridge - we turn off the house water when we are gone for a couple weeks.
If it is really cold outside - I open sink cabinet doors that are on the exterior of the house as a precaution.

Our neighbors were only gone for a weekend, and the water line to their fridge somehow failed. They had a finished basement which got wet - they had to replace ALL the carpet baseboards, and drywall downstairs, as well as the flooring and base cabinets in the kitchen. Luckily they were in the process of moving, and had mostly cleared out the lower level.

We don't have water to the fridge, but do turn off the water to the house when we're gone for more than a long weekend. It's easy to do, and mighty cheap insurance.

I have had ice makers for 40 years, travel a lot, never turned ice maker of water off, never had a problem