I’m having some problems with my Oscar from Nuova Simonelli.
The water actually pours out non stop of the group when the machine is just started (cold) but it intermittently stops once the machine gets hot.
Here is the machine running cold:
http://www.youtube.com/watch?v=DeHKiXrNQGI
Here is the machine running hot:
http://www.youtube.com/watch?v=iA0FChC8Tvw
Theres actually no water going to the drip pan (bypass) I don’t know if the water simply stops feeding to the group or if its sent back to the boiler.
Once hot, the machine has a hard time pushing water through the portafilter with even an average fine grain (that my Saeco wouldnt have problems with).
Last test I did, there was absolutely no water pouring out of the portafilter and coffee was barely tampered.
The pump seems to work ok when the machine is cold.
Is it a pump problem, a 3 way valve problem or a sensor problem? Is there something I can adjust or does some piece need to be replaced?
The water actually pours out non stop of the group when the machine is just started (cold) but it intermittently stops once the machine gets hot.
Here is the machine running cold:
http://www.youtube.com/watch?v=DeHKiXrNQGI
Here is the machine running hot:
http://www.youtube.com/watch?v=iA0FChC8Tvw
Theres actually no water going to the drip pan (bypass) I don’t know if the water simply stops feeding to the group or if its sent back to the boiler.
Once hot, the machine has a hard time pushing water through the portafilter with even an average fine grain (that my Saeco wouldnt have problems with).
Last test I did, there was absolutely no water pouring out of the portafilter and coffee was barely tampered.
The pump seems to work ok when the machine is cold.
Is it a pump problem, a 3 way valve problem or a sensor problem? Is there something I can adjust or does some piece need to be replaced?


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