Grinding thickness controller for Siemens EQ.3 S100 and S300 coffee machines

What is the grind adjustment regulator

The grind adjustment regulator is a part of the grinder in a coffee machine that allows you to set the fineness of ground coffee according to the type of preparation. It controls the distance between the grinding burrs or blades, directly affecting the flow rate of water through the coffee and the resulting taste of the beverage.

Signs of wear or malfunction

When the regulator loses precision or the mechanism becomes worn, the setting no longer holds, changes on its own, or gets stuck. This shows up as inconsistent coffee taste, sudden changes in grind fineness, difficult or completely impossible adjustment, or mechanical noise when turning the control.

Why timely replacement pays off

A damaged regulator prevents precise fine-tuning of the grind, which affects the quality of the espresso as well as the load on the grinder and other coffee machine parts. Timely replacement restores smooth and reliable grind adjustment and prevents bigger problems with the grinding mechanism.

Selection advice

• Check compatibility with your specific coffee machine model in the product table.
• When replacing it, also check the condition of the adjacent grinder parts.

Compatible with

• EQ.3 TI301509DE S100
• EQ.3 TI303503DE S300
• EQ.3 TI305506DE S500
• EQ.3 TI30A509DE S100
• EQ.3 TI313519DE S300
• EQ.300 TI351509DE Black
• EQ.300 TI353501DE Silver
• EQ.300 TI355F09DE
• EQ.300 TF301E09 Black
• EQ.300 TF301E19 Black