Ok today I have pulled around 8 shots all ramping up to 10.2 bar then the pump tone goes to a near silent hum and the brew pressure drops back to 8 bar and sits there till I finish the shot,
This is the first time it has happened every time a pull a shot,
Also notice the brew pressure guage is slowly fluctuating when idle rising up as far as 8 bar
Any ideas ?
Possibly a new pump ?