Sub-Zero Classic Series (BI) Internal Water Dispenser Drips


  • Low water pressure
  • Air in water line
  • Defective switch
  • Dispenser water tube alignment in dispenser switch assembly


  • Classic (BI) internal water dispenser drips
  • Water leaks from Classic series internal water dispenser when not in use or after dispenser use
  • Water sputters when dispensed
  • Water dribbles or wicks backwards after dispenser operation

Steps to Verify Issue:

  1. Verify the water tank is full. Press a glass against the dispenser until water begins to flow.
  2. Remove water filter.
  3. Repeat step 1 to determine if water filter is clogged.
  4. If water begins to flow, replace the filter, which is available for purchase through Sub-Zero’s Accessory Store.

For external dispenser models, see Sub-Zero Unit with Ice and Water Dispenser Dripping.


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

Thank you for your request. A Customer Care representative will contact you.

An error occurred. We were unable to submit your request.

Related Questions

We're standing by with answers

Whether you're shopping for appliances or have questions about those you already own, we've got the resources you need. Talk directly to a customer care expert at the Sub-Zero, Wolf, and Cove service center, or connect with an appliance consultant at an official showroom near you. Get quick answers online, or reach a certified service provider or installer. And much more.

Call us at (800) 222-7820

Customer Care and Support