During the ice harvesting, the compressor is still running and supplies power to the drain valve and the hot gas valve. The purge valve opens to allow the pump to clean the water remaining in the tank and remove all impurities and deposits. This allows the machine to clear ice and at least keep minerals from accumulating.
Then the pump stops. The hot gas valve opens to transfer hot refrigerant gas to the evaporator. The gas heats the evaporator, causing the cube to slide as a unit to close the evaporator and enter the storage bin. The freeze cycle will restart all cubes into the trash.
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