My Gaggia Classic coffee machine pump fails at higher pressures.
Following a descale and (admittedly my first ever) back-flush my Gaggia Classic pump has gone a bit wierd. At higher pressures the pump apparently ceases to work and falls silent meaning the pressures achieved are insufficient for decent espresso... It's not merely that I am choking the machine as the pump seems to completely cut out. It is very much like the situation seen in this video:
I've repeatedly primed the machine, as recommended in the thread responding to this video but so far to no avail. Any help would be gladly received!
Thanks jon




