I bought the refrigerator new in 2012 and haven't had problems with it until this. It was moved to a new house in 2014, where the water pressure to the refrigerator is quite low, making it impractical to fill large containers with water, but the ice maker seemed unaffected and made plenty of ice. I drink a lot of ice water, so the ice maker was running every day, much of the day, but it kept up. Then a month or so ago the ice maker was getting very heavy use filling pitchers for icewater (the water just came from the sink faucet, not from the refrigerator's water dispenser). And then poof, the ice maker stopped making ice. I tried pushing the reset button (which makes a chime after 3 seconds) and giving it a day, but still no ice -- I repeated this a few days with no luck. This week I pulled out the ice maker, shook a few stray cubes out of it, and thoroughly dried it with a hairdryer. Put it back in, pushed the reset button, still no ice days later.

My girlfriend pointed out to me that she noticed the refrigerator making a faint "owl hooting" sound from the icemaker side of the refrigerator, around the same day it stopped working. It continues to make the sound.

The bottom freezer, drink drawer, and top refrigerator seem to be working fine.

I should have been more clear: I could hear the "owl hooting" noise myself once she pointed it out to me, but I'm not sure if it's always done that. I speculated it was the compressor.

If the water line has low pressure, could the line to the ice maker freeze?

Is there a way to test the water line to the ice maker? Is there a way to tell why no water is going to the ice maker -- the valve is in the refrigerator, not the ice maker (the water falls from the water line into the ice maker's inlet with no physical connection), but perhaps the control circuitry is in the ice maker unit.

Oh, and I should mention, one of the first things I did was replace the water filter, so I know that isn't the problem.