Refrigerator Water Shut Off Valve Why?

"Try looking under the kitchen sink
next to the main line to the drain. There may be a saddle valve connected to the main line that looks like this: www.myhvacparts.com
Twist the saddle valve handle and it should turn off the water to the sink and refrigerator. I found this out today.... The hard way. Good Luck! :o)"

If you ever need to fix or change the fridge, you'll find out.

for maintenance and in case you wanna buy a new fridge without having to shutoff the rest of the water