Espresso Machine, CHULUX, Countertop Coffee Maker with Pressure Brewing

This is caused by pump in dry state. Use original accessories, fresh dark roast powder (NOT expired, Medium to Medium-Fine, NOT too fine or too coarse), 8-9g for 1 CUP filter, 14-15g for 2 CUP filter, distribute powder evenly, tamp powder tightly, then your espresso will very good. We have 7*24 hours professional service team, always be happy to assist you with any trouble. We need release hot water to let the pump get water inside. Fill tank & install in place, plug in & press Power button. When preheat is done, turn the knob to MAX, wait 10s, then turn to OFF. Repeat this cycle 3-5 times, it will back to normal.