Thermador Clogged Defrost Drain or Overflowing Drain Pan

Refrigerator leaking water onto the floor from the front or underneath.

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Possible Causes

Blocked defrost drain tube, Cracked or misaligned drain pan, Excessive frost due to door gasket leaks

How to Fix / Troubleshooting

Safety first: Unplug the refrigerator. Wipe up water to prevent slips.

Steps to check:

  • Clear defrost drain: Access the freezer evaporator area and flush the drain hole with warm water until it flows freely to the pan.
  • Inspect drain pan: From the rear bottom, check the drain pan for cracks or misalignment. Replace if damaged.
  • Check door gaskets: Inspect gaskets for gaps or tears that allow warm air in, causing excess frost and water. Replace damaged gaskets.
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Repair Difficulty

Easy 2/5

Required Part

Defrost Drain Tube
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