LA MARZOCCO LINEA MINI General Troubleshooting

Steam Valve Rebuild Kit

This kit includes the primary sealing element and all necessary internal O-rings for the valve shaft. Replacing the entire internal assembly addresses the common failure of elastomeric hardening due to constant thermal stress. It ensures that both the primary seal and the secondary shaft seals are renewed to prevent future leaks.

SKU: L165/K

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Steam Valve Sealing Element

This is the specific flat gasket that makes contact with the valve seat to block steam flow. Over time, it develops a deep indentation or 'pitting' from the metal seat, allowing high-pressure steam to leak through. Replacing this individual component restores the physical barrier required to maintain boiler pressure within the wand.

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Vacuum Breaker Valve

If the drip is accompanied by an internal hissing sound or moisture inside the machine casing, the vacuum breaker has likely failed due to scale accumulation. This valve is designed to close only when the boiler reaches pressure; failure to seal results in steam escaping the boiler manifold, which can manifest as condensation exiting the wand assembly area.

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