Results 1 to 9 of 9

Thread: Hissing Safety valve GPP

  1. #1
    Senior Member
    Join Date
    Jan 2008
    Location
    Brisbane, Queensland, Australia, Australia
    Posts
    1,756

    Hissing Safety valve GPP

    Gene Cafe Coffee Roaster $850 - Free Beans Free Freight
    Hey guys and gals,
    My GPP has been emitting a quiet hissing sound of late, i took off the top and it is coming from the one of the two safty valves on the top of the boiler (not sure if they are both safety valves) if i hit the button a couple of times to let some steam out it seals up and stops, then it happens again after a week or so, is it buggared? does it need replacing? it was purchased from serge from GoBarista......still under warrantee(dont really want to send it away) or is it something else? the boiler pressure is running between 1.1-1.25. not sure on the duty cycle whilst hissing as i havent measured yet.

    cheers guys

  2. #2
    A_M
    A_M is offline
    Guest
    Join Date
    Mar 2006
    Posts
    6,381

    Re: Hissing Safety valve GPP

    Quote Originally Posted by 1A1E382121243B2C234D0 link=1261003341/0#0 date=1261003341
    Hey guys and gals,
    My GPP has been emitting a quiet hissing sound of late, i took off the top and it is coming from the one of the two safty valves if i hit the button a couple of times it seals up and stops, then it happens again after a week or so, is it buggared? does it need replacing? it was purchased from serge from GoBarista......still under warrantee(dont really want to send it away) or is it something else? the boiler pressure is running between 1.1-1.25. not sure on the duty cycle whilst hissing as i havent measured yet.

    cheers guys
    That will be the Anti Vac valve... MAYBE...

    Hisses as you bring the system up and when pressure has been reached it seals off.. Could be a bit of crap and or the spring or seal is dirty..

    Follow up with the supplier first... Could be a clean or replace.. Cheep...

    Then again... I could be barking up the wrong tree... [smiley=2vrolijk_08.gif]


  3. #3
    TC
    TC is offline
    .
    Join Date
    Oct 2004
    Location
    Melbourne
    Posts
    14,665

    Re: Hissing Safety valve GPP

    Its the anti-vac valve wsully....

    There is a small o-ring in it and the tiniest bit of scale or grit can create a poor seal.

    You will find that like group seals, the anti-vac valve in not normally covered by warranty unless the o-ring is defective. Replacement is cheap ;)

    Good luck

  4. #4
    A_M
    A_M is offline
    Guest
    Join Date
    Mar 2006
    Posts
    6,381

    Re: Hissing Safety valve GPP

    Quote Originally Posted by 1025282F1B072B22222121440 link=1261003341/2#2 date=1261004115
    Its the anti-vac valve wsully....

    There is a small o-ring in it and the tiniest bit of scale or grit can create a poor seal.

    You will find that like group seals, the anti-vac valve in not normally covered by warranty unless the o-ring is defective. Replacement is cheap ;)

    Good luck
    Yep seen it a few times..

    I guess ya must be slack on ya Maintenance :D ;D ;)

    So no 4x4 day trip for you... Y a failed the basic entry test ;D :o 8-)

    Love ya :P

  5. #5
    Senior Member
    Join Date
    Jan 2008
    Location
    Brisbane, Queensland, Australia, Australia
    Posts
    1,756

    Re: Hissing Safety valve GPP

    Thanks guys.......legends as per usual! ;)

  6. #6
    Senior Member
    Join Date
    Jan 2008
    Location
    Brisbane, Queensland, Australia, Australia
    Posts
    1,756

    Re: Hissing Safety valve GPP

    Quote Originally Posted by 230C0507102F030C0305070F070C16620 link=1261003341/3#3 date=1261004660
    So no 4x4 day trip for you
    I had a laugh, you lot can stay in our camper trailer!, all you need to bring is you lot and a decent gene to power a GPP and SJ!

  7. #7
    Member
    Join Date
    Sep 2008
    Posts
    63

    Re: Hissing Safety valve GPP

    I think my Giotto Premium Plus also has a Anti-Vac valve that is on the blink.

    Can anyone please refer me to a place with the right replacement valve?

    Thanks.

  8. #8
    A_M
    A_M is offline
    Guest
    Join Date
    Mar 2006
    Posts
    6,381

    Re: Hissing Safety valve GPP

    Quote Originally Posted by 29382F272B292223242F4A0 link=1261003341/6#6 date=1261282165
    I think my Giotto Premium Plus also has a Anti-Vac valve that is on the blink.

    Can anyone please refer me to a place with the right replacement valve?

    Thanks.
    Coffeeparts - Sponsor over there to the left ............ They are a standard unit...

    Seriously.. A clean and inspection is all it usualy takes.....

  9. #9
    Senior Member ozscott's Avatar
    Join Date
    Jun 2006
    Location
    BRISBANE
    Posts
    1,998

    Re: Hissing Safety valve GPP

    Mine didnt respond to cleaning on the FAEMA, but then again it is almost 15 years old...ordered a new one instead at all of about $30 which is sweet for a component made of brass that lasts that long.


    Cheers



Similar Threads

  1. Replacement Safety Valve Benzer moka pot
    By rinch in forum Brewing Equipment - Manual Coffee Brewing Processes
    Replies: 2
    Last Post: 20th April 2011, 04:20 PM
  2. Safety Valve on Expobar Compact Faulty?
    By whitie8000@hotmail in forum Brewing Equipment - Extreme Machines ($3000+)
    Replies: 11
    Last Post: 2nd November 2010, 12:29 PM
  3. Vibiemme Domobar hissing
    By Lou in forum Brewing Equipment - Pointy End ($1500-$3000)
    Replies: 12
    Last Post: 21st August 2010, 07:25 PM
  4. Hissing noise from Junior
    By Stickleback in forum Brewing Equipment - Extreme Machines ($3000+)
    Replies: 7
    Last Post: 26th January 2010, 12:18 PM
  5. Moka Pot safety valve
    By herbie in forum Brewing Equipment (non-machine specific)
    Replies: 3
    Last Post: 28th January 2008, 11:17 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •