Hi all, complete new comer to this forum having recently manage to pick up a 2nd hand M21 Jr.
Machine is not at all old - built November 2006. Everything appears to work perfectly - heats up, fill solenoid works fine, steam perfect, dispensing water from knob o.k, builds to about 1.2 to 1.4 bar etc etc; however when I select any of the 4 shot buttons, I get a puff of steam and very little to zero water flow through the group.
Having located a copy of the hydraulic circuit it appears something to do with the coffee solenoid, or perhaps some build-up or sticking solenoid?
I believe the machine had bitting sitting not used for a while when I managed to get hod of it.
Any advice appreciated - and yes Im looking to take it to the local service agent for a service, but just want to make sure theres no big dramas.
Machine is not at all old - built November 2006. Everything appears to work perfectly - heats up, fill solenoid works fine, steam perfect, dispensing water from knob o.k, builds to about 1.2 to 1.4 bar etc etc; however when I select any of the 4 shot buttons, I get a puff of steam and very little to zero water flow through the group.
Having located a copy of the hydraulic circuit it appears something to do with the coffee solenoid, or perhaps some build-up or sticking solenoid?
I believe the machine had bitting sitting not used for a while when I managed to get hod of it.
Any advice appreciated - and yes Im looking to take it to the local service agent for a service, but just want to make sure theres no big dramas.

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