La Marzocco GS3: Replacing the Flowmeter

Below are instructions for replacing a flowmeter on a La Marzocco GS/3 espresso machine. This is useful when getting a flowmeter error code after making sure there is proper flow through the whole system. (Difficulty ☕☕☕)

Before doing this we recommend unplugging the machine and allowing it to fully cool off.

Tools required:

• 13mm socket wrench
• 14mm wrench
• 17mm wrench
• adjustable wrench

First, remove the right side panel.

When finished tighten down all tubes and test for flow, leaks and error code.