Boiler pressure

[Plumbertully]

Hello I'm new to this forum stuff so I wonder if somebody could help me?
Im a plumber myself and I'm puzzled by my boiler losing pressure.
I have no leaks, I've had a new pressure vessel, the pressure relief is not letting by.

Any ideas because since the heating is on I'm topping up every 2 to 3 days
as a plumber I know this isn't normal. I just need to bounce some ideas with other plumber out there

 

[Alpha man]

What boiler and system have you got? How old are they?

 

[Plumbertully]

Hello there
i have a combi 35cdi Worcester

 

[Plumbertully]

It's about 10 years old

 

[diamondgas]

Hi 'Plumbertully' & :welcome: to the forum .... I'd suggest you keep an eye on the pressure gauge when the system is cold and then when its hot if you have a large rise in pressure, towards 3bar, that drops back to low when cold then you have an issue with the component that's designed to reduce the fluctuation.... How familiar are you with sealed heating system make-up and design?

 

[Plumbertully]

Thank you so much replying back. It's taken me all this time to realise I wasn't logged on . Now I am I'm able to reply.
Im fairly on my game with sealed systems but I have got to a blank regarding what you said. Could you explain further. Many thanks

 

[tom609]

are you gas safe registered??
you may have a drain off leaking some where or if you have floor boards on the ground floor you may have a bad joint under the floor

 

[lame plumber]

more likely its a fairly common problem found on the hex, but this is an open forum so enough said

 

[Plumbertully]

tom609 I'm not gas safe registered, but there is a reason for that because I don't touch gas!!!
like all good plumbers/ heating engineers we only do what we legally are allowed to do.
right back to something you said I don't have any leaks anywhere!!! And I've checked every joint . I've put on to the system a new pressure vessel. And the pressure relief is not letting by.
Ive even added clothes dye inside the system to see if heating water was mixing into the hot water. Nothing!!!
im wanting to get my gas safe partner to put a new boiler in for me but I'm very reluctant in doing so as its a massive expense incase it's something with the current boiler that can be fixed.
Thank you for getting back to me I really appreciate it.

 

[dancinplumba]

Its a Worcester, I am with lame on this one. I must be seriously ill

 

[Plumbertully]

Thank you lame and dancing plumber. Will look into this one. Sounds common!!

 

[lame plumber]

point being yr not gsr so how can u

 

[Ermintrude]

Leaking Worcester common? CO fumes from my fire are getting to me!

 

[lame plumber]

leaky wb are fairly common in my work, is it you only hang them then

 

[dancinplumba]

point being yr not gsr so how can u

Cos you told them what to look at Mebe ?

 

[lame plumber]

Cos you told them what to look at Mebe ?

smart bum i only mentioned a common hex issue, still he wont know where to look for a leak, unless ermi goes and tells him as for agreeing with me, nice to be appreciated again, isnt it time we started the xmas panto routine, it will get croppie going eventually

 

[Gas]

Im fairly on my game with sealed systems but I have got to a blank regarding what you said. Could you explain further...

With the greatest respect, i beg to differ, considering you didn't know he was talking about the EV. I don't want you to be a typical cliché and lull yourself into thinking you know enough, when you evidently do not.

 

[cava55]

Snap same problem as you boiler pressure low when cold but 2.5 to 2.8 bar when hot, down stairs rads take ages to get warm all bled and free from air. Up stars rads boiling hot ! boiler is in loft, hot water 2.0 bar whats going on with this system all worked fine last year. Boiler only 3 years old worcester 24 I greenstar any ideas guys ?.

 

[dancinplumba]

Yes, you need a gsr installer to check it out

 

[Gas]

Snap same problem as you boiler pressure low when cold but 2.5 to 2.8 bar when hot, down stairs rads take ages to get warm all bled and free from air. Up stars rads boiling hot ! boiler is in loft, hot water 2.0 bar whats going on with this system all worked fine last year. Boiler only 3 years old worcester 24 I greenstar any ideas guys ?.

Not something you can fix yourself unfortunately, check if yours is still in warranty though Cava, who installed it?

 

[cava55]

Local gas fitter cant get hold of him at mo as all the plumbers gas fitters round my way are flat out ! used to be in the trade but that was 10 years ago and things have moved on ! gas safe was corgi in my day.

 

[Gas]

Local gas fitter cant get hold of him at mo as all the plumbers gas fitters round my way are flat out ! used to be in the trade but that was 10 years ago and things have moved on ! gas safe was corgi in my day.

Busy time of year, you still can not do it yourself else you wouldn't be asking.

Book a RGI in convenient to you.

Simple really

 

[tom609]

Call the guy who installed it let him sort it

 

[lame plumber]

Local gas fitter cant get hold of him at mo as all the plumbers gas fitters round my way are flat out ! used to be in the trade but that was 10 years ago and things have moved on ! gas safe was corgi in my day.

if that is the case why you asking on a forum?

 

[cava55]

If whats the case why am I asking ? cos its allways good to get a second opinion ! that a problem ?.