How to mend ... Central Heating Running

worcester 28i combi boiler?

The burners will not light when switching central heating on.But lights when running hot water.

S Plan Plus System and Vaillant ecoTEC plus 831?

Vaillant ecoTEC plus 831 boiler is in and running the house heating and water. Control of heating is only by... [Read more]

worcester 28i combi boiler?

the pilotlite works when running hot water,but will not light when turning central heating on.

e80?

the pressure keeps rising even though I know the ball valves are shut for topping up. Cold standing pressure i... [Read more]

Why is my central heating system over pressurising?

Why is my central heating system over pressurising? I woke up this morning to hear water running! on investi... [Read more]

Hot water not running from taps and heating not operating, WHY?

Just bought house and work being carried out. Valliant boiler was showing No water (Bar low) error message F7... [Read more]

Central Heating not coming on ?

Only get the central heating to come on when running the hot water,it's an old system with pre- lagged cylinde... [Read more]

about glow.worm.fuelsaver f?

control model ep3002 when running central heating setting manually both sliders have to be in on position why ... [Read more]

Halstead Ace High boiler central heating cuts out before thermostat tempera?

Hi, my Halstead Ace High boiler central heating cuts out before thermostat temperature. Hot water works fine a... [Read more]

sime fomat 80e boiler?

pilot light keeps going out when the hot water and central heating are on toghether , the overflow is always r... [Read more]

potterton netaheater profile 60e?

System works fine for two days then goes mad i.e pump keeps running and boiler turns self on then over flows i... [Read more]

no hot water from the taps when central heating is running?

when i have the central heating running i cannot have hot water from the tap could it be the diverter valve at... [Read more]

How to fix low pressure on Baxi combi 105e?

I have just started running my central heating for winter and and it is not running at correct pressure(0.5-2.... [Read more]

how to fix my ravenheat csi85at boiler?

will not fire either dom hot water or central heating , spark firing , fan running no main fire

no hot water evrything fires up?

Hi need help. Iv`e got a sime super90 I fitted a new diverter valve and micro switch about 8 months ago. Ever... [Read more]

need help asap?

i have a potterton puma 100e,the central heating works fine but the hot water only works when thr central heat... [Read more]

Pump over-run?

My Worcester 19/24CBi boiler keeps overflowing into the header tank via the expansion pipe. Whilst reducing th... [Read more]

Radiaters heat up when domestic supply is running?

The boiler only heats the domestic hot water if the central heating is switched on, if the heating is switche... [Read more]

blowdown running constantly?

the pressure relief valve on my combi boiler runs every time a hot tap is opened or the central heating is run... [Read more]

Ravenheat LS100T combi boiler?

The boiler is not working on either the hot water or the central heating. When I go to switch it on the green ... [Read more]