Grinding thickness controller for Siemens EQ.9 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 replace this part in time

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.9 TI903509DE S300
• EQ.9 TI905501DE S500
• EQ.9 TI907501DE S700
• EQ.9 TI907F01DE
• EQ.9 TI923509DE S300
• EQ.9 TI9555X1DE S500
• EQ.9 TI955F09DE S500
• EQ.9 TI9575X1DE S700