In door ice maker quit working after water was turned off for a few days (Whirlpool)
I have a GE side by side.  During the Texas deep freeze of 2021 we were very lucky, we never lost power.  However, we did lose water for a day or two.  When the water came back on, the Ice maker no longer made ice.  The problem was the tube which dispenses the water into the ice tray, froze up when water no longer moved through it every so often.  All I had to do was blow a hair dryer on in for a few minutes and the ice plug melted and water could once again flow into the ice tray.