Rancilio Hydraulic Module Pressure Relief Valve Brand_Rpm Spa and over-tightening is a common

and over-tightening is a common cause of cracked housings on CEME 6660 solenoids

loose grounds falling into the base of the grinder can work their way into the motor housing over time

both with leads

Fits: La San Marco SM95

Rancilio Hydraulic Module Pressure Relief Valve Brand_Rpm Spa and over-tightening is a commonPressure Relief Valve for Rancilio Hydraulic Module (Post 2013) OEM pressure relief valve built into the Rancilio Hydraulic Module produced after 2013, current Rancilio part #101000035 (Hydraulic Block MC 120V 60Hz IDR. MC 2022), superseding earlier numbers 69140028, 69140062, and 69140009. If your machine is over pressurizing, weeping from the hydraulic block, or the brew pressure won't settle, this valve is worth inspecting first. COMPATIBILITY