Teka Sink Flange Seal Failure

Water leaks from around the top of the disposal where it meets the sink.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Deteriorated sink flange gasket, Loose mounting ring, Insufficient plumber's putty or sealant, Corroded sink flange

How to Fix / Troubleshooting

Safety first: Turn OFF power and avoid using the disposal or sink until the leak is repaired to prevent water entering the motor.

  • Step 1 – Confirm leak source: Fill the sink with water and add a few drops of food coloring. Observe from below to see if colored water seeps from the top of the disposal.
  • Step 2 – Tighten mounting ring: Slightly tighten the three mounting screws evenly to compress the gasket. Do not overtighten to the point of deforming the sink.
  • Step 3 – Replace gasket if needed: If tightening does not stop the leak, the sink flange must be removed. Support the disposal, release the mounting ring, and push the flange up out of the sink. Clean old putty and install a new Teka-compatible sink flange gasket and fresh plumber's putty or sealant.
  • Step 4 – Reassemble and test: Refit the disposal to the flange, tighten evenly, then fill the sink again to check for leaks.
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Repair Difficulty

Medium 3/5

Required Part

Sink Flange Gasket / Mounting Kit
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