There's a chrome armature (wire) that raises as the "ice bucket" gets full, it might be stuck in the full position.
The thermostat is set too cold and the water filter froze.
The electronic relay that turns the water off and on to the ice maker croaked.
The valve that turns the the water on and off is toast.
DIRTY ICE MAKER WATER VALVE OR BROKEN VALVE
The water line where it enters the ice maker could possibly be frozen.
Sometimes an ice maker will stop making ice. This tip could work to dislodge the ice. The cause could be a cube that has become lodged where it should not be. Unload the freezer (pain) and use a hair dryer directly pointed at the ice maker, on high heat, for about 20 minutes. This melts the lodged cube and the ice maker works again. The humming noise could be the ice cube preventing the mechanism that pushes the ice, to make place for more, from moving. Let a technician check out the cause of the problem though.
If you have an external ice maker with a dispenser it'll allow for you to get the ice without opening the freezer rather than opening than freezer and digging out the ice as you would with a internal ice maker with no dispenser.
Dirty ice could be caused by a buildup of mineral deposits or mold inside the ice maker. It's possible that the ice maker needs to be cleaned thoroughly to remove any bacteria or residue. Regular maintenance and cleaning of the ice maker should improve the quality of the ice produced.
Your ice maker may not be working properly due to a clogged water line, a faulty water inlet valve, a malfunctioning thermostat, or a problem with the ice maker itself. It is recommended to check these components to determine the cause of the issue.
I would not say that Manitowoc Ice is really the best brand of ice maker, but it is certainly one of the best. I would check out Hoshizaki brand ice makers as they are very good as well.
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Kenmore is a great refrigerator. It has a very quiet ice maker. It would be great for your apartment. http://spokes-n-stuff.com/
If you find white powder coming from your ice maker, it may indicate a problem with the water supply or the ice maker itself. It is important to stop using the ice maker immediately and clean it thoroughly. You may need to consult a professional to determine the cause of the issue and make any necessary repairs.
If your ice maker is producing only two cubes at a time, it could be due to a low water flow to the ice maker, a malfunctioning ice maker module, or a problem with the water inlet valve. You may need to have a technician inspect and repair the ice maker to determine the exact cause of the issue.