Boiler Indicator - Pressure Decreasing?

Kavanne

Hi. We had our bathroom redone in April and a new radiator installed. The plumber said to watch out for the boiler pressure decreasing. It used to be around one and I suddenly noticed today it's around 0.7... do you think this is due to the radiator? I've not noticed any leaks from it and heating still seems to be working fine

Unfortunately we can't call the same plumber as he had a breakdown shortly after doing our bathroom lol

I mean, that's not funny, but it's why I'm asking on a forum!!

sophieschoice

Mine decreases quite often. OH has a plastic key which he puts in and turns to fill the water up and that puts it right. The instruction manual shows you how and the plumber should have left the key thingy for you. Quite normal.

EliteHeat

April to now and 0.3 bar? don't worry, no leaks in your system, just re-pressurise up to 1.

Kavanne

sophieschoice wrote: »

Mine decreases quite often. OH has a plastic key which he puts in and turns to fill the water up and that puts it right. The instruction manual shows you how and the plumber should have left the key thingy for you. Quite normal.

I can confirm I have the key thing but no instruction manual as it's about 10 years old and we only moved in in 2008... no manual left... :-o It's a Worcester if that helps? Anyone know how to repressurise?

EDIT: My OH has just said he knows how to repressurise but that as it's not a problem yet he can't be arsed. Am I correct in saying that if we leave this long enough that it becomes a problem, repressurising won't solve it?

Cheers

Tucker

It will become a problem, as many boilers shut down if the pressure drops to 0.6 or so and it won't work till the pressure is put back up.

Tell the lazy sod to do it

Kavanne

My OH has changed his mind and would like some confirmation of how to do it... anyone plonk out a quick guide or got a good website?

EDIT: Found the manual online

We have put in the key and turned the grey knob as instructed (page 5 of this if anyone's interested: http://www.worcester-bosch.co.uk/homeowner/literature/discontinued-boiler-literature/discontinued-gas-boiler-literature/24cdi-rsf-discontinued-june-2007-literature)

But just behind where the grey knob is is a wet patch with some limescale on.... could this be a leak or is this normal? Do I need a professional?

wuckfit

Worcester Bosch? losing water pressure?
there's an air tank inside that needs to be re-pressurised I think.

this can be done with a standard foot-pump, though I'm not sure exactly where abouts inside the boiler it is. I saw the boiler service guy do this to ours, but I wasn't able to get close enough to see where he connected the footpump.

We were losing pressure on a daily basis - literally from over 2.0 bar it would drop down to less than 0.5 bar and the boiler would shut down. Since the engineer serviced it (and I mentioned the problem about continually losing pressure) and repressurised the vessel, we've had no problems with it.

Kavanne

How much was the service, if you don't mind me asking, wuck?

wuckfit

I'm not sure, it's part of a maintenance contract we have with scottish gas. they come out every year to service it as far as I know (or at least they're supposed to)

Sorry I can't be of more help than that, but I'm confident that re-pressurising the air vessel will solve the dropping water pressure problem.

Kavanne

Yeah now I am just worried about this potential leak we have found

wuckfit

limescale would indicate that the leak is historical. dry the pipe and see if you can see any water escaping to start with