Question about La Pavoni "PROFESSIONAL Chrome" 16Cup

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Steam escapes while machine tries to heat up

This is a new machine, I have used it less than 6 times. It worked fine this morning. I started to make an espresso tonite, and when the machine was trying to heat up, I noticed a lot of steam escaping thru that big nut on the top right of the machine. I'm not sure what that piece is called. Of course the machine could never reach "pullable" temperature.

Can anyone help me....please?

Kathy

Posted by on

  • kjashley Aug 23, 2008

    I let the machine sit for awhile, already having decided from my chat session that it should be exchanged for a new one since it was only a few days old.



    For some reason, I decided to put some more water in the boiler and try it again. This time, steam started to escape thru the big nut again, then I heard something sort of click, and the steam stopped coming, and the machine heated up and it worked as it should have.



    This is wonderful!!!!!

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Hi,
That big nut is the pressure relief valve. It should normally be closed, unless the machine overheats, in which case it will vent the steam, thereby preventing an explosion.
The valve design means that it's somewhat normal for some steam to vent as the machine heats up, but once it gets close to working temperature, it should seal.
Pavoni does now have a replacement valve that avoids this problem. When your machine needs a major service, hopefully more than 5 years from now, you may decide to get the upgraded valve fitted.

Fergus.

Posted on Sep 08, 2008

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