Freezer Drain Tube Cleaning

Cause:

  • Frozen drain tube
  • Food particles clogged in drain tube
  • Drain heater failure
  • Temperature or performance issues

Core Issue:

  • How to clean a freezer drain tube if it is frozen, clogged, or dirty?
  • Freezer drawer slides are covered in ice.
  • Freezer continues to frost over after unit has been defrosted.
  • Ice forming on side of freezer wall, covering slides or drawers.
  • Freezer drain tube requires frequent cleaning.

Steps to Verify Issue:

  1. Fix error codes, messages, or service indicators first.
  2. Ensure condenser is cleaned, see Clean the Condenser.
  3. Verify temperatures are properly set using Refrigerator and Freezer Temperature Settings.
  4. Inspect door/drawer gasket for damage and replace if needed.
  5. Defrost freezer section, see Manually Defrost a SubZero for instructions.
CAUTIONS
  • The freezer drain tube is not accessible to clean.
  • Freezer drain tube is most often frozen, not clogged, if it is blocked.
  • Do not disconnect the drain tube.
  • Do not to put anything down the tube such as a brush or wire, it could pierce the tube and lead to a larger problem.

Answer:

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

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