📹 ECM and Profitec: E61 Flow Control Maintenance and Calibration Updated January 11, 2022 16:51 Learn how to maintain and calibrate the flow control device for Profitec and ECM E61 espresso machines. E61 Flow Control Maintenance and Calibration Compatible machines (00:00) Diagnosing Flow Control Device Issues (00:28) Tools Required (02:24) Removing Mushroom (04:17) Remove Flow Control Handle and Post (06:44) Disassemble Lower Portion of Mushroom (07:50) Inspect Holes & Screen (09:02) Remove Valve & Clean Threads (10:05) Inspect O-Rings (11:00) Remove & Replace O-Rings (11:30) Clean Mushroom Nut (13:43) Lubricate O-Rings & Threads (14:35) Reassemble Parts (15:24) Calibrating Flow Control Position (18:40)