Why won't my new refrigerator water line valve turn?
That &quot;plumber&quot; did you no service by leaving you with old fully rotating valves that are likely to break if you force them open! They break easily without force! He's just waiting for you to break it, flood the place and call him back. I'd call him back and first ask him why he didn't install &quot;quarter turn&quot; valves. Get him to install quarter turn valves which are much easier to turn on and off and don't break as easily as the older, fully rotating handle kind that you have now. Was there no access to the water main to turn off the water and so he couldn't/wouldn't do this?