Gaggia Classic Pro: Flow Issue Troubleshooting

Step 1: Conduct a flow test

Step 2: Diagnose flow issues

Step 3: Looking into some common flow issues

Solenoid Valve Troubleshooting

Reservoir Tubing Misaligned

Hardware and Usage Basics

Brewing Components Clogged

Grouphead Cleaning and Service

Cleaning, Maintenance, Backflushing, and Descaling

Coffee is Ground Too Fine

Puck or Extraction Troubleshooting

Pump Failure

Boiler is Clogged

No Flow Through the Steam Wand

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Gaggia Classic Pro: Flow Issue Troubleshooting

by Whole Latte Love 3 min read Updated: September 18, 2025

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When it comes to flow trouble on a semi-automatic machine, there are a number of factors to consider. This article will start with the basics and help determine just what is going wrong with the flow or pressure on your machine.

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