Troubleshoot and restore your espresso machine's pressure system with this definitive guide.
The gauge is a passive manometer measuring back-pressure created by the packed coffee puck.
A stationary needle during extraction often indicates a blocked capillary tube or pump failure.
Gauge reading maximum pressure without a portafilter signifies a malfunctioning Over-Pressure Valve system.
Water leaks inside the chassis or behind the drip tray often cause pressure reading inconsistencies.
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