My icemaker stopped making ice. I have replaced the water inlet valve. It made ice for awhile but then stopped. Noticed that fill tube was frozen. Have been thawing it with hair dryer. It will make ice for a day or two and then freeze up again. I have replaced the water filter in case that was restricting flow. I have turned the freezer temperature control to the warmest setting. Water pressure is good -- water dispenser works fine.

Could something be wrong with freezer thermostat where its too cold even though I've set it to the warmest setting? I don't know what else to try???