Hi Milla,
Great question. We understand and appreciate your inquiry about how long it take to fill the ice bins of the fridge.
The ice maker can make 10 pounds of ice a day; it can only hold 2 pounds of ice at a time. Once the ice bucket is full, the ice maker will stop.
The ice maker can approximately make two trays of ice every 3 hours.
Ice maker is not working https://www.samsung.com/us/support/troubleshooting/TSG01001012/#ice-maker-is-making-some-ice-but-not-enough
For the ice maker to operate properly, water pressure must be between 30-125 psi (206-861 kPa). If the refrigerator is installed in an area with low water pressure (below 30 psi / 206 kPa),
you can install a booster pump to compensate for the low pressure.
Have a great day.
^Charles