How to mend ... Valve Low Water

boiler worcester 400 vessel bar pressure fluctuates?

hi my computer been down anyway now fixed bolier not pressure seems to go up and down bar between 1 and 4 and ... [Read more]

water level getting excessively low?

my water level is getting ecexxively low. but i could not see any leak could this be the flow valve? or what c... [Read more]

Glow worm hot water express boiler ?

pilot on ok, fan runs low speed and high speed ok, but boiler will not fire up either on hot water or central... [Read more]

Vaillant eco TEC boiler F22 keeps occurring?

Our ecoTEC boiler keeps giving an F22 error. We top up the system and then it's Ok for a week or so before it ... [Read more]

Valliant boiler with low water pressure?

I have a Valliant boiler modelVUW GB 242E I always have to open the water inlet valve to keep the pressure up ... [Read more]

Boiler problem - Myson Apollo 50s?

My boiler has stopped heating and my engineer is stumped. I have a small baby and need the heating on asap (t... [Read more]

Boiler pressure will not increase, please help?

Hi, I have a combi boiler which has a low pressure of 0.9 the boiler only works sometimes and takes a long t... [Read more]

Worcester Bosch 350 combi boiler loosing pressure?

We have a combi boiler that is about 12 years old. Every morning the low pressure light is displayed and we ha... [Read more]

Puma 80 problems?

Can you help me please ? I have a problem with my Potterton Puma 80 combi-boiler. ( permanent pilot mod... [Read more]

Hot water prob - Vaillant Turbomax Plus?

For about the last 6 weeks or so our hot water temp has been very unstable. The boiler fires and heats wat... [Read more]

modena102 ch problem?

i have a modena 102 that heats water perfectly but on ch pressure rises boiler creaks and after 30 seconds ish... [Read more]

potterton proforma 28 gas boiler has high bar pressure !?

i noticed 2day that the pressure on my boiler was very low so turned it up t0 1 and half bar, to my horror it ... [Read more]

Water pressure on a Sime 100e combi-boiler?

... after replacing the diverter valve diaphragm, dhw heat exchanger and cleaning the inline filter I'm still ... [Read more]

My Potterton Puma 80 has pressure build up problem!?

When the boiler is providing hot water only everything is fine, operating without any problem. But when the c... [Read more]

Worcester 25Si ...Hot water not firing up at low pressure?

I've got a Worcester 25si around 7 years old combi, recently it decided to have a problem with the hot water. ... [Read more]

Expansion vessel replacement?

Hi all, I have a Glowworm 80e combi with pressure issues. Low pressure on the gauge (sub 0.5bar). Fillin... [Read more]

Potterton Puma 100e Low Pressure?

I have replaced the safety valve and thermostat on my boiler, when the system pressurises to about 1bar the lo... [Read more]

low pressure in vokera linea he?

Hello, can I ask some advice? I have the above combi & a couple of days ago it began faulting on code 40, low ... [Read more]

ravenheat rsf 820/20?

I have a ravenheat 820/20 C/boiler,The c/heating works fine , but the dom/water is just about warm, I had a ne... [Read more]

Poor hot water temperature with heating on?

I have a Vaillant Turbomax combination heating boiler. When the central heating is operating & a hot tap is... [Read more]