Water line frozen

So first, turn the refrigerator a bit warmer so it doesn’t freeze again in the future. Cold air sinks and hot air rises so the bottom of the refrigerator is always a bit older than the top, but you don’t want it so cold that it’s freezing water. If the water line has frozen, you just need to remove the bottom drawers and use a hair dryer to thaw out the line until water can flow through through again to the icemaker. You may also need to thaw out the fill tube right behind the icemaker if that has frozen. You can pull the refrigerator forward and disconnect the water line going up to the icemaker down at the valve under the refrigerator so that you can blow through it to confirm it’s clear up to the icemaker.