How to mend ... Air Expansion Vessel

Bosch Worcester Highflow 400 no heating no hot water?

We've had an ongoing deries of problems which Brit.Gas are struggling with... 31 Dec: no heating/hot water - ... [Read more]

Halstead Ace High, high pressure rise to 2.5bar when heating is on?

Please help, all rads bled okay, hot water demand fine. But pressure on gauge shows a rise from 0.5 to 2.5bar... [Read more]

HIGHER THAN NORMAL PRESSURE ??

My boiler sits happily at 1 bar when cold and 2 - 2.5 when fully running. In the past couple of weeks this goe... [Read more]

EXPANSION VESSEL PROBLEMS ... Help !!!?

1. when I attach a pump to put air into the vessel, having got it to the correct 1 bar pressure on the pump, t... [Read more]

Expansion Vessel Help needed ! ?

How do you test an Expansion Vessel for faults - should there be air in there when you press the bleed nipple ... [Read more]

zilmet z160 expansion vessel pressure?

Because I am on a water meter I have a zilmet z160 expansion vessel fitted to my cold water main to reduce the... [Read more]

How to pressurise expansion vessel?

Vaillant Combi boiler VCW 282 central heating expansion vessel needs to be re pressurised as it is causing hig... [Read more]

my vokera 726 is losing water pressure when the central heating is turned?

what air pressure is required in the expansion vessel

expansion vessel?

Thanks (I Think) in that case, how can I put air in the expansion vessel (or take water out)? and how do i kn... [Read more]

Vaillant VCWGB242EH GC 4704413 Combi goes out immedi?

Hi, am working on the above boiler, was leaking at the auto air vent so tested the expansion vessel to find it... [Read more]

grant 70/90 outdoor, sealed system boiler?

I have been losing pressure and some water from system for some time now could'nt find a leak any where indoor... [Read more]

how to fix baxi 133 he?

hi there i have a baxi 133he combi it all works fine apart from the pressure gauge sits at zero .then when the... [Read more]

Pressure dropping on worcester 241 RSF boiler?

Hi i hope someone can help me, the pressure has been dropping on our boiler and has noe gotten to the point wh... [Read more]

Vaillant VCW GB242 high pressure ?

I have a VAILLANT - VCW GB 242 EH boiler installed by the previous previous owner and no manual. When the hea... [Read more]

How to come out of lockout mode?

My worcestwer bosch 30 cdi boiler (Normal) is in the lockout mode. I have tried to take out any air. There w... [Read more]

expansion vessel - engineer correct?

Hi there, our worcester bosch 240 has had a new diverter valve fitted by a brit gas engineer. Following the... [Read more]

0pressure obvious things checked! help!!!?

i have a modena 80e ferroli boiler that is ok when the heating is on and then when it is off loses all its pre... [Read more]

Worcester Heatslave 20/25 Oil Combi Boiler?

Help, Our Worcester Heatslave 20/25 boiler has been playing up again recently. Over the past 14 months we hav... [Read more]

How to repressurise Flexcon expansion vessel?

Having read previous posts I have established that I need to repressurise my Flexcon 18/0.5 expansion vessel. ... [Read more]

pressure loss constantly?

my ideal classic boiler constantly loses pressure and requires topping up every day, could this be due to evap... [Read more]