We have a 5 year old refrigeraor with a top freezr where the ice maker is mounted (no dispenser, just an ice bin).
We use a lot of ice every day and recently noticed that a layer of ice was building up on the on the bottom of the bin. When the service man came out, he installed a new ice maker. However, it's still freezing water on the bottom of the bin. At the same time, it's also make the expected quantity of ice cubes.
A second service man came out and examined the new ice maker and said there was nothing wrong it it. I doubt he know what he's talking about, since the problem is recurring. Our top freezer maintains a minus 10?F temperature.
We're scheduled to have another service call, but in the meantime, any suggestions for trouble shooting?