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bezzera BZ40 pressure gauge meaning?
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Evascroll
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Posted Tue Mar 19, 2013, 8:33pm
Subject: bezzera BZ40 pressure gauge meaning?
 

the bz40 have 2 reading i believe one is the pressure for the steam! the other ???? heelllppp

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Evascroll
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Posted Tue Mar 19, 2013, 10:41pm
Subject: Re: bezzera BZ40 pressure gauge meaning?
 

Ok! I did a little of reading and i found out that the lower gauge is the pump pressure! Rigth?
Sow its that truth thi is were my troubles begin! The thing is that wen i open the water to the machine the gauge go up!
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Coffeenoobie
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Posted Wed Mar 20, 2013, 11:29am
Subject: Re: bezzera BZ40 pressure gauge meaning?
 

The gauge that stops at 3 is probably the boiler gauge and the one that stops at 15 is probably the pump and I would think that should go up when it is turned on.  Not sure what the issue is..... pressure at the puck should be about 10.

 
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Evascroll
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Posted Wed Mar 20, 2013, 4:35pm
Subject: Re: bezzera BZ40 pressure gauge meaning?
 

Thanks for the inf noobie! I already findout about the gauge! My problem is that the pump gauge is on 8bar even if the machine is off! If i turn off the water from the hx the pressure goes to 0! I have a feeling that it is the pump! But i dont have the knowledge to be sure! Sow iam waiting for some helllppp!!!!
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calblacksmith
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Posted Wed Mar 20, 2013, 8:57pm
Subject: Re: bezzera BZ40 pressure gauge meaning?
 

If the gauge reads pressure when the machine is off and not connected to a water supply then the gauge is bad.
If the machine is connected to your house water,cit should show the pressure in your house, about 2bar, on the lower gauge then go up to 9 or 10 when you turn the brew on.

 
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Evascroll
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Posted Wed Mar 20, 2013, 9:52pm
Subject: Re: bezzera BZ40 pressure gauge meaning?
 

Yes!!! Thats it, it is coneccted to the water and it give around 2 to 3 bar and when a brew it go up aroud 5 to 6bar how do i raise the bar up to 9bar!
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calblacksmith
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calblacksmith
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Espresso: ECM Vene. A1, La Cimbali M32
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Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Thu Mar 21, 2013, 4:01am
Subject: Re: bezzera BZ40 pressure gauge meaning?
 

Adjust the pressure regulator.

If it will not go that high, there may be pump damage or a faulty regulator, most often called the OPV valve.

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

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Evascroll
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Posted Fri Mar 22, 2013, 5:46pm
Subject: Re: bezzera BZ40 pressure gauge meaning?
 

calblacksmith Said:

Adjust the pressure regulator.

If it will not go that high, there may be pump damage or a faulty regulator, most often called the OPV valve.

Posted March 21, 2013 link

Ok this what it does! When i open the water from the main house it go's up to 7 bar, and wen iam brewing the pressure go's up to 9,10 back and foward
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calblacksmith
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calblacksmith
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Location: Riverside, Ca, U.S.A.
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Espresso: ECM Vene. A1, La Cimbali M32
Grinder: Azkoyen Capriccio, Major
Vac Pot: 40s era Silex
Drip: Msl. Com. brewers
Roaster: gave it a try, decided no
Posted Wed Mar 27, 2013, 6:30am
Subject: Re: bezzera BZ40 pressure gauge meaning?
 

A bar of pressure is the weight of air at sea level, or about 14 psi (from memory)

7 bar is 98 psi, I kind of suspect that the gauge may not be correct that is a LOT of pressure in the house plumbing system. Where I live, we are required to have a regulator on the inlet to the house set to no more than about 45 psi, by law. I live on the top of a hill so I have even less water pressure, about 2 bar or less so we have low water pressure problems.

I advise you to have the house pressure checked, the gauge on the machine should read the same as the house pressure when you are not brewing.

I do not understand what you mean with the statement,  "9,10 back and forward"
Are you saying it bounces around while brewing or that when brewing it is about 9 or 10 and when you stop, it drops back to 7?

That would be normal operation if you intended to mean the last sentence.

 
In real life, my name is
Wayne P.
Anything I post is personal opinion and is only worth as much as anyone else's personal opinion. YMMV!

Feed the newbs, starve the trolls and above all enjoy what you drink!
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Evascroll
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Location: PuertoRico
Expertise: Just starting

Posted Thu Mar 28, 2013, 9:10am
Subject: Re: bezzera BZ40 pressure gauge meaning?
 

I find out the problem! It was the rotary pump! I did by a new one and came today and fixid :)
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