How to mend ... Boiler Keeps Over Heating

vaillant woes?

hi all ,in need of a bit of help for a sick vaillant 828 turbo plus fitted about 3 years ago,a brief history... [Read more]

One radiator not heating to the same temperature as the others?

I recently got a new additional radiator installed and it is not heating to the same temp as the rest of the r... [Read more]

Intermittent hot water one SIME combi boiler?

I have a sime combi boiler, sorry, I dont know where to find the model number, but the heating (radiators) are... [Read more]

how can i fix my combi boiler ravenheat rsf 100?

heating is working fine but when i turn on hot water it keeps goin hot and then cold then hot then cold,can an... [Read more]

Potterton Puma 80e - Hot Water but not heating?

There is hot water coming from the boiler; this has led me to believe that the pump is working and able to pum... [Read more]

PCB for worcester 35cdi mk2 rsf boiler?

Following the fault dianostics, given a fast flashing red lamp, on J flowchart in the owners manua (The fan no... [Read more]

Vokera Excell. Heating system ok but no hot water!!?

Our boiler is operating ok but we are not getting any hot water. If the boiler is not running,usually it kicks... [Read more]

Re Glow.Worm Micron 50FF Fault?

Hi can anyone help with this one, had the above boiler for under 3 years, lately the heating would just turn o... [Read more]

Fan noise from Potterton Puma 80 - 100?

There is a constant fan noise coming from my Potterton Puma boiler (either 80 or 100 series). It goes away wh... [Read more]

240 combi boiler?

my worcester 240 combi boiler will not supply me hot water on demand but when the heating is on it runs warm,w... [Read more]

how can I fix my central heating boiler?

I have a Ferolli 77CF combi bolier 1993. If we turn on the hot water we have to continually hold down the pilo... [Read more]

hot rads but water runs cold or just warm?

the only way to get hot water is to turn heating down low what is wrong with my combie boiler

ariston a/23 mffi no heating or hot water "help"?

the ignition reset button/safety reset overheating light on the boiler is continually coming on which shuts of... [Read more]

How can i fix my boiler, Potterton Puma 80 - 80e?

The pliot light is on and stays on, but when i put the central heating switch on, it lights up as normal. afte... [Read more]

Trouble shooting guide required for Ravenheat 820/20 combi boiler?

Does anyone have a copy of this user manual/service guide/trouble shooter they could email me. My boiler is... [Read more]

We have a worcester bosch 240 boiler, yet we cant use "On Demand"?

We have a worcester bosch 240 boiler, yet the "On Demand" switch doesnt work when it is on. If we turn on the ... [Read more]

do i need another diverter valve for my alpha 280e combi boiler?

My alpha 280e combi boiler has a problem with the hot water temperature, it fires up ok starts to heat the wat... [Read more]

Hot water but no heating, pressure is v.low, how do I fix?

The boiler pressure reading is close to zero and I have no heating in all of my rooms except the one nearest t... [Read more]

Heating not working, but there is constant hot water supply?

I have a valiant combi boiler, which works ok when hot water is needed, but the ignition light goes off each t... [Read more]

how can i fix my valiant ecomax 828e?

my central heating works but when i turn on the bath hotwater tap the boiler shuts down and E12 is displayed a... [Read more]