Ice maker with pulsed fill routine

An ice maker comprising:

• an ice formation device in which to form ice;
• a water system comprising a sump for holding water, a water pump configured to circulate water from the sump to the ice formation device, and a water inlet valve configured to connect to a water supply, the water inlet valve being configured to selectively open and close to selectively impart water from the water supply into the sump;
• a refrigeration system configured to cool the ice formation device for forming at least some of the water circulated by the water system into ice;
• and
• a control system configured to control the refrigeration system and the water system to conduct ice batch production cycles in which batches of ice are formed in the ice formation device, the control system including a controller and a water level sensor configured to output a signal representative of water level in the sump to the controller, the controller being configured to execute a fill routine during each ice batch production cycle, during each fill routine, the controller being configured to:
• fill the sump to a fill-approach level by opening the water inlet valve until the water level sensor outputs a signal indicating the water level in the sump has reached the fill-approach level;
• after receiving the signal indicating the water level in the sump as reached the fill-approach level, close the water inlet valve;
• and
• after closing the water inlet valve, filling the sump further to a freeze routine starting level by pulsing water through the water inlet valve until the water level sensor outputs a signal indicating the water level in the sump has reached the freeze routine starting level.