Well, mine was! Apparently it is a fairly common problem for the water dispenser line in the GE side by side refrigerators to freeze. It seems there is an issue with the insulation inside the door taking on too much moisture so it doesn’t insulate the line well enough to keep it from freezing.
If you need to check if your line is frozen, simply remove the kick plate off the bottom of the fridge then unhook the water line just under the left door. Simply pull the two blue tabs apart to unhook the line. Place a cup under the line going towards the back of the refrigerator then activate the water dispenser. If water flows then the water line is frozen inside the door. Hook up the water line again and replace the kick plate.
To thaw your line, use a hair dryer on high heat pointed the water line and back (outside) of the water dispenser control panel for about 15 minutes. That thawed it for me but of course it’ll just freeze again.
Fortunately you can purchase a water line heater from amazon that installs in about 15 minutes and fixes the issue permanently. Sure beats paying $200 for a serviceman to do it!