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Leaking Water

Breville Espresso Machine

Severity: Moderate

What Does This Error Mean?

A leaking Breville espresso machine is most commonly caused by a worn group head gasket or a portafilter that is not locked in tightly enough. Check the portafilter seal first — it is the most frequent source of leaks.

Affected Models

  • Breville Barista Express
  • Breville Barista Pro
  • Breville Bambino Plus
  • Breville Oracle
  • Breville Infuser
  • Breville Dual Boiler

Common Causes

  • Worn or cracked group head gasket
  • Portafilter not locked in properly or over-ground coffee forming an uneven puck
  • Loose or cracked water tank connection
  • Scale buildup causing internal pressure to route through unintended paths
  • Cracked drip tray or overflow tube disconnected

How to Fix It