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Sub-Zero Drain Tube Clogged


  • Water in refrigerator under crisper drawers
  • Sub-Zero drain tube clogged
  • Water not draining out of the refrigerator or freezer
  • Drain tube requires frequent cleaning


  1. If you know which product you have, see product-specific troubleshooting:
    1. Classic (BI), Designer (Formerly Integrated), 700, 400, 648PRO Series Drain Tube Clogged
    2. 200/300, 500 and 600 Series Refrigerator Drain Tube Cleaning
    3. 500 or 600 Series Freezer Drain Tube Cleaning
    4. 600 Series Freezer Drain Tube Cleaning for Serial Numbers Greater Than 1810000
  2. Make sure the refrigerator temperature is set correctly. See Refrigerator and Freezer Temperature Settings for details.
    • Factory settings on electronic control panels are 38°F (3°C) in a refrigerator and 0°F (-18°C) in a freezer. These are ideal food storage temperatures.
  3. Clean the Condenser if it has not been done in the past 6 to 12 months.
  4. Verify the door is shut tightly. Remove anything that is blocking the door from shutting completely.
  5. Verify the door gasket is in good shape with no rips or tears. If the gasket is damaged, contact Factory Certified Service to schedule an appointment for repair.
  6. If these troubleshooting steps do not resolve the issue, service is necessary to expertly diagnose and repair the product. Contact Factory Certified Service to schedule an appointment for repair.


Need further assistance? Contact Customer Care at 800.222.7820 or provide your information below and request a Customer Care representative contact you.

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