The lower ice maker will not quit making ice when the tray is full.
You will want to check the arm on the icemaker to make sure that it is not broken off. If broken off you would need to replace the arm part number DA61-05435A. If the icemaker arm is not broken then replace the icemaker DA97-07603B.
Ice maker was not producing ice. The ice tray would fill up, not empty the tray, then the water would overflow when it refilled emptying into the ice bucket. The ice bucket would be filled with solid ice no cubes. We ordered a replacement part (da97-00258e) but it did not fix the problem. The ice tray would not dump and cracked.
You will want to check the internal temperature of the freezer compartment to ensure that the temperature setting is -2 and that it is showing as a -2 in the unit. If the freezer temperature is getting too cold it will cause this issue. If the temperature is set for -2 but is getting colder than a -5 then the issue may be a sensor that has failed.