My Kitchen aid Ice Maker Mod.# KUIS1558HXW2 has started making tiny slivers of ice instead of the thick slabs it was making. Would this be the thermistor or the board? we replaced both about a year ago.
Check the water level of the unit and make sure that there is enough water and that the pump is pumping water across the evaporator properly. If this checks ok then the most likely cause would be a faulty thermistor. If the thermistor checks ok then you may be looking at a issue of low refrigerant or possibly a clogged condenser coil or condenser fan motor that is not running.
Is there a thickness adjustment for this machine?
Answer Hello Ed. No, this model does not have a thickness control.