Don't panic if your gauge isn't moving; here is how to diagnose the issue.
Pressure is simply resistance against flow; if the grind is too coarse, the gauge stays flat.
Calcium buildup in your solenoid valve often prevents the hydraulic system from stabilizing pressure correctly.
If your machine is over 18 months old, scale buildup is likely choking your internal water path.
Fluctuating bean humidity and empty hoppers often throw off the machine's fragile sensor-grinding technology feedback loop.
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