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samster
Senior Member
samster
Joined: 7 Jun 2011
Posts: 4
Location: saint louis
Expertise: I love coffee

Posted Sun Oct 7, 2012, 10:42am
Subject: LM gs3 idle pressure
 

Hello. Starting about 3 months ago, my GS3 grouphead pressure gauge began indicating a drop in pressure when sitting idle. It's a home machine, so I only use it in the mornings and evenings, but leave it on 24/7.

When brewing, the pressure is at a solid 9-9.5. However, afterwards, the pressure starts to drop after about 15 minutes and settles to about 3 bar after around 2 hours.

When I brew, the pressure goes back to 9-9.5 so no problems there. However, it used to hold pressure at 9 all the time. Questions are:

  1. Does anyone else experience this?
  2. Is it a problem? If so, is there an easy home fix?

The machine is 1.5 years old, purchased new. Thanks much in advance.

-Sam
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Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 2,972
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Mon Oct 8, 2012, 11:05am
Subject: Re: LM gs3 idle pressure
 

I wish I could tell you, but if it were mine I would have someone check it out.  Any machine that changes it behavior like that has a reason.... Machines do things randomly just seem random to us.  It always has a cause.

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

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Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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samster
Senior Member
samster
Joined: 7 Jun 2011
Posts: 4
Location: saint louis
Expertise: I love coffee

Posted Mon Oct 22, 2012, 4:30pm
Subject: Re: LM gs3 idle pressure
 

thanks for the response coffeenoobie.

i just had a tech come over and do "standard maintenance", which involves changing all gaskets throughout the group head. All pressures are back to normal. I was a little shocked at how much wear happens in just 1.5 years of use. best to do this on every year i think. it's like having a new machine.

thx.
-sam
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Coffeenoobie
Senior Member
Coffeenoobie
Joined: 11 Dec 2011
Posts: 2,972
Location: PNW
Expertise: I like coffee

Espresso: N S Oscar
Grinder: K30 & Vario W
Posted Tue Oct 23, 2012, 11:40am
Subject: Re: LM gs3 idle pressure
 

Thanks for letting us know what happened. I change the group head gasket every 6 months, so I keep at least one on hand all the time.

 
Coffeenoobie

Buying advice: GRINDER GRINDER GRINDER. Don't cheap out on the grinder.

My coffee treasure map...
Click Here (maps.google.com)

Oscar trick out: http://s156.photobucket.com/user/GandBteam/story/14231
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