When your Sub-Zero ice maker produces impure or cloudy ice, it can diminish the quality of your beverages. Here are the potential causes of this issue along with DIY solutions:

1. Water Quality Issues

   Ensure that the water supply to the ice maker is sourced from clean and purified water. Consider installing a water filtration system specifically for your ice maker to improve water quality.

2. Clogged Water Filter

   Replace the water filter with a new one according to the manufacturer’s recommended schedule. This helps filter impurities from the water supply.

3. Ice Maker Bin Contamination

   Regularly clean the ice maker bin or storage area to remove any residual ice and prevent contamination. If the bin has a removable tray, take it out and wash it with mild dish soap and warm water. Rinse thoroughly before reinserting.

4. High Mineral Content in Water

   If your area has hard water with a high mineral content, consider using a water softener to reduce mineral buildup in the ice maker and improve ice quality. Periodically descale the ice maker by running a mixture of vinegar and water through it to dissolve mineral deposits. Follow the manufacturer’s instructions for this process.

5. Old Ice

   Use the ice regularly to prevent it from becoming stale or absorbing odors from the freezer. Empty the ice bin periodically and replace it with fresh ice.

6. Contaminated Ice Scoop

   Ensure that the ice scoop or any utensils used to handle ice are clean and free of residues or contaminants.

7. Inadequate Ice Storage

   Avoid overloading the ice maker with excessive ice production demands. Allow the ice maker to produce ice at a reasonable rate, ensuring that it has enough time to form clear and pure ice.

If, after following these DIY solutions, your Sub-Zero ice maker continues to produce impure or cloudy ice, it may be necessary to consult a professional technician for a more in-depth inspection and potential repairs. Regular maintenance and water quality management can help maintain clear and pure ice production.