Gaggia Cadorna: Pump Test and Priming

by Whole Latte Love 1 min read Updated: September 18, 2025

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For pump testing purposes, check out your p/s reading as the pump runs with the EV off and on. If you have water dispensing somewhere (even if it’s just filling up the internal drip tray) but a reading of zero, you have flow meter blockage. To ventilate and improve flow rather than testing, set water to dispense from your steam wand until you get a steady flow: