DIYnot
Local | Network
   DIYnot > Forums
Local | Network
DIYnot Network Local DIYnot Network Local  
  Forum IndexForum Index     RulesRules    HelpHelp     Join FREERegister Free     About CookiesCookies     SearchSearch     LoginLogin 

Vokera combination boiler low water pressure


 
Post new topic   Reply to topic    DIYnot.com Forum Index > Plumbing and Central Heating
Search this topic :: View previous topic :: View next topic  
Author Message
katiew65

from United Kingdom

Joined: 12 Oct 2007
Posts: 13
Location: London,
United Kingdom

PostPosted: Fri Oct 12, 2007 5:51 pm Reply with quote

This morning my Vokera combination boiler made a thudding sound as I turned on hot water - I went to look at boiler and saw that the water pressure gauge had dropped from its normal 1-1.5 bar to nearly zero (in red zone!). I have looked high and low for a small manual I have but can't find it. Is there something I can do myself to get the pressure back up or is this something that may be wrong with a part in the boiler? Any suggestions I'd be grateful for - I'm pretty capable of mending something if I have some directions... Thanks in advance....
Back to top
 Alert Moderators

If you do not want to see this advert, click here to login or if you are new click here to join free.
Fleeting Glimpse

from United Kingdom

Joined: 08 Oct 2007
Posts: 28
Location: United Kingdom
Thanked: 1 time

PostPosted: Fri Oct 12, 2007 6:03 pm Reply with quote

is there a silver hose underneath?
Back to top
 Alert Moderators
katiew65

from United Kingdom

Joined: 12 Oct 2007
Posts: 13
Location: London,
United Kingdom

PostPosted: Fri Oct 12, 2007 6:08 pm Reply with quote

yes that's right, a silver hose underneath...
Back to top
 Alert Moderators
Fleeting Glimpse

from United Kingdom

Joined: 08 Oct 2007
Posts: 28
Location: United Kingdom
Thanked: 1 time

PostPosted: Fri Oct 12, 2007 6:22 pm Reply with quote

This is your filling loop.

Make sure its connected to the pipes secure.

There should be a two valves, one without a handle and one with a black handle.

Turn the black valve on till water flows and pressure goes up to around 1.5 Bar.

If it drops again you more than likley have a leak somewhere under the floor?
Back to top
 Alert Moderators
katiew65

from United Kingdom

Joined: 12 Oct 2007
Posts: 13
Location: London,
United Kingdom

PostPosted: Fri Oct 12, 2007 6:47 pm Reply with quote

... will try this and see if it works... thank you so much for your advice!
Back to top
 Alert Moderators
katiew65

from United Kingdom

Joined: 12 Oct 2007
Posts: 13
Location: London,
United Kingdom

PostPosted: Fri Oct 12, 2007 6:56 pm Reply with quote

Just looked at valves... no black handle - two valves one with 'Filling Valve' on it and the other with 'Filsafe valve' on it - both grey in colour. Both valves have 'open' and 'shut' arrow directions. I opened 'Filling valve' but nothing happened - do I have to have tap running or anything?There is also a larger tap that is silve/gold in colour.
Any suggestions please?
Back to top
 Alert Moderators
katiew65

from United Kingdom

Joined: 12 Oct 2007
Posts: 13
Location: London,
United Kingdom

PostPosted: Fri Oct 12, 2007 7:00 pm Reply with quote

The tap is connected to the same pipe as the 'Filling Valve' so maybe I have to open the tap first and then open the 'Filling valve' to let water in?
Back to top
 Alert Moderators
Fleeting Glimpse

from United Kingdom

Joined: 08 Oct 2007
Posts: 28
Location: United Kingdom
Thanked: 1 time

PostPosted: Fri Oct 12, 2007 7:39 pm Reply with quote

correct icon_biggrin.gif
Back to top
 Alert Moderators
katiew65

from United Kingdom

Joined: 12 Oct 2007
Posts: 13
Location: London,
United Kingdom

PostPosted: Fri Oct 12, 2007 7:56 pm Reply with quote

Oh no, not sure what I have done - I opened 'Tap' then I turned on 'Filling valve' and nothing happened at all, so I then turned on 'Filsafe Valve' and water cam in - I topped up to 1.5 bar and then closed the Filling Valve, closed the Filsafe Valve and closed the Tap. Now there is no water coming out of any of my hot taps at all.... any ideas?
Back to top
 Alert Moderators
katiew65

from United Kingdom

Joined: 12 Oct 2007
Posts: 13
Location: London,
United Kingdom

PostPosted: Fri Oct 12, 2007 8:20 pm Reply with quote

Well I know I must sound a bit stupid to you by now.... with both valves closed and tap closed I came to the conclusion that everything was turned off, i.e. so no water could get through at all! But funny thing is that the tap was so tightly closed I had to use a spanner/pliers to prise it open. Now if both valves are closed and tap is open the hot water will come on and everything runs fine now - I could have sworn that both valves were closed and that so was tap closed but maybe tap was just stuck wherever it was and I assumed it was closed because I had to prise it open. In any case all 'seems' to be working now... just hope I have done correct thing to have both valves now closed but tap open.... can you maybe let me know if you think that this sounds correct... thanks again...Katie
Back to top
 Alert Moderators
coltmanneil

from United Kingdom

Joined: 31 Oct 2005
Posts: 83
Location: United Kingdom

PostPosted: Fri Oct 12, 2007 10:03 pm Reply with quote

Had a similar problem 3 years ago with my linea 24.Where i kept filling the loop up and the pressure kept disappearing.When i called Vokera in as it was under warranty at the time,it was found that the expansion tank was defective.???So if you keep charging it up and the pressure goes down,this could be why.
Back to top
 Alert Moderators
Search this topic :: View previous topic :: View next topic  
Post new topic   Reply to topic    DIYnot.com Forum Index > Plumbing and Central Heating All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Similar Topics   Replies   Views   Posted 
Combination boiler-insufficient water pressure 4 600 Tue Nov 11, 2008 6:31 pm
Losing water pressure from my combination boiler 3 1020 Mon Oct 10, 2005 2:42 pm
Water Pressure Gauge - Combination Boiler 9 640 Thu Apr 23, 2009 9:00 pm
Combination cylinder pump for low hot water pressure 3 20 Sun Dec 16, 2012 11:36 pm
Combination boiler losing pressure 3 200 Mon Jan 11, 2010 3:06 pm


 
DIYnot
Find an Expert | Find a Supplier | Search DIYnot.com
Network | Advertising | Newsletter
DIY | DIY How To | @home | DIY Wiki | DIY Forum
By using this site you agree to our Terms of Service / Disclaimer.
Please read our Privacy Policy. Copyright © 2000-2014 DIYnot Limited.