Lower gauge that monitoring pump always shows 4 no matter what. The upper gauge that monitors steamer works normal. As recommended in the user manual, I adjusted screws located near the pump but no response. Please help
Coffee Makers & Espresso... - Nuova Simonelli - Premier Maxi Espresso Machine
Answers & Comments
The gauge is connected with pump water output with a very thin pipe called cappilary pipe. So if any dirt that is comming from the water supply can blocked this cappilary pipe and if this happens during the pressuring phase then blocked a pressure of 4 bar inside the gauge. So if you desconect the cappilary pipe behind the gause the you should see if any water comes out from cappilary pipe. If not you can remove it also from the side of the water pump and try to clean it by blowing air from the side connected to gauge this can clean it perfectly. The you can conect it back together. The you will read normaly the pressure of the water mains and during making easpresso pressure of about 9 bars. If you dont have any change in the gauge after performing above the gauge might be the problem.