Hi - I just fired up my Expobar Office Control after having it serviced some time ago. Everything seems functional for the most part - I get lots of hot water, it fills normally (vibe pump hums and fills tank) and I get plenty of steam and hot water with auto refill.
However, when I try and make coffee - that. is, direct flow to the grouphead, I get a fainter hum (almost as if the 3-way valve is blocked) and no flow out the screen.
The repairman who did my service retired - it's a bit difficult as he was not well at the end (His wife returned the machine) so I do not want to bother him about it.
Any suggestions where to start? Thanks!
However, when I try and make coffee - that. is, direct flow to the grouphead, I get a fainter hum (almost as if the 3-way valve is blocked) and no flow out the screen.
The repairman who did my service retired - it's a bit difficult as he was not well at the end (His wife returned the machine) so I do not want to bother him about it.
Any suggestions where to start? Thanks!

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