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Ice Clumping Together in Ice Bucket


  • Why are the ice cubes clumping together in the ice bucket?
  • Why does ice have to be manually broken up?
  • Why does the ice bucket have to be shook to break up the ice?

Steps to Verify Issue:

If ice is not used regularly, it will fuse together; this is considered normal operation. You may need to discard the ice and allow ice to replenish.
  1. Verify freezer temperature.
    • If temperature is above 5°F, ice maker will not function properly.
    • Sub-Zero recommends a freezer temperature of 0°F.
  2. Clean the Condenser if it has not been cleaned within the last 3-6 months.
  3. Ensure the ice bucket is installed properly.
  4. Verify doors and door seals are free of tears and debris.
  5. Ensure the ice maker is always left on.
  6. The more ice is used, the less it will clump – if unused, even for a period of a few days, ice will fuse together as the freezer runs through defrost cycles.
  7. Empty, rinse and dry the ice bucket 1-2 times per month in order to remove the ice particles.
  8. Ensure water filter is replaced as required.
  9. Verify water pressure to unit is steady between 20 – 100 psi.

For additional information, refer to:


If these steps do not resolve the issue, no further troubleshooting advice is available. Contact Factory Certified Service to schedule an appointment for repair.

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