Franke
Sink Flange / Mounting Seal Leak
Water leaks from the top of the Franke garbage 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 Franke mounting ring, Insufficient plumber's putty under flange, Corroded sink flange
How to Fix / Troubleshooting
Safety first: Turn OFF power and unplug the disposal before loosening the mounting assembly.
- Confirm leak source: Fill the sink with water and observe from below to ensure the leak is at the sink flange, not from side connections.
- Remove disposal: Support the Franke unit from below and rotate the mounting ring counterclockwise to release it from the sink flange.
- Reseat flange: From above, remove the sink flange, clean old putty or gasket, and apply fresh plumber's putty or install a new Franke sink flange gasket as specified.
- Reinstall and tighten: Reinsert the flange, tighten the mounting hardware evenly, then remount the disposal and test for leaks.
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Repair Difficulty
Medium
3/5
Required Part
Franke sink flange gasket
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