Geberit Half Flush Fix

thingiverse

The half-flush on my 3-year old Geberit cistern stopped working. After examining it and comparing to a working one, there are 2 small tabs which break off after some use. This prevents the half-flush lifter from lifting the central plunger. It appears to be a design weakness, as many people online have reported this problem. **Print 2 of these and fit in the locations shown.** You need to remove the mechanism first. The entire mechanism can be removed and reinstalled through the button panel. See these instructions on how to do this (or search for some videos online): https://doc.geberit.com/966877000.pdf For reference the model number is Geberit Sigma 109.796.00.1 Concealed Cistern (but will likely work with other models)