200, 300, 500, and 600 Series Refrigerator Drain Tube Cleaning


  • Frozen drain tube
  • Food particles in drain tube causing clog

Core Issue:

  • Drain tube is frozen, clogged, or dirty
  • Water behind or under crisper drawers
  • Water coming out front of refrigerator door
  • Ice behind crisper drawer in the drain area
  • How to clear, clean, or unclog the drain tube

Steps to Verify Issue:

Refer to the Drain Tube Cleaning Instructions for illustrations and more details.

  1. Turn off the refrigerator.
  2. Remove the crisper drawer and shelf; behind this drawer is where water or ice may collect.
  3. If there is ice on the floor of the refrigerator section, make sure the refrigerator dial control is set correctly. See Temperature Settings.
  4. Remove ice by defrosting unit or use a hair dryer on low to melt.
  5. Remove the kickplate at the bottom of the unit.
  6. Mix one quart of warm water with two caps full of bleach and a few drops of dish detergent to make a solution.
  7. If there is standing water in the trough that runs across the back wall, remove the water with a turkey baster or sponge.
  8. Squirt or pour the bleach solution down the drain until it no longer overflows into the refrigerator and drains into the pan below the unit.
  9. Remove the drain pan when done, and clean it out since solution sitting in the pan could damage the plastic. See Sub-Zero Drain Pan Removal.
  10. Reinstall the kickplate.
  11. Turn the unit back on.
  12. For clogged drains accompanied by poor temperatures, door sealing issues, or service indicators, contact Factory Certified Service to schedule an appointment for repair.
  13. See also:


  • Do not disconnect the drain tube from the drain trough.
  • Do not remove the drain tube.
  • Do not put anything down the tube like a brush, it can pierce the tube and lead to a larger problem.
  • Compressed air may be used to clear out the drain tube, if desired.
  • If a drain pan heater kit with coils is installed, preventing removal of the drain pan, leave the drain pan in place and use a turkey baster to empty it.


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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