How to mend ... Hot Central Heating

Central Heating won't heat radiaters but do have hot tap water?

I have an Optima 700 boiler/central heating system. When I turn up the room thermostat it clicks but the boile... [Read more]

vaillant combi?

i have a vaillant combi that will give me central heating fine but when i want hot water will not fire up ... [Read more]

what wrong with combi boiler?

I have breath all cenral heating in my house so heating can be flow fully inside the rediator, after that the ... [Read more]

has the pump gone?

i've just been doing a bathroom. and i switched the hot water off and re-routed the pipe. now the central heat... [Read more]

glowworm spacesaver 38?

I have a glowworm spacesaver 38,the central heating works fine but no hot water through any tap

hi i have a ravenheat boiler rsf 84et not firing up?

when i turn on the hot water or the central heating,the fan starts up and the pilot egnition fires and lights ... [Read more]

i need help to get hot water without central heating on?

i can only get hot water when i put the central heating on otherwise no hot water...can someone please advise ... [Read more]

Ferroli Modena 80e 9925l80478?

The central heating and hot water is not working as the red warning light comes up stating insufficent central... [Read more]

ravenheat 820/20 combi boiler ?

When I run the hot water tap, the water is cold, the pilot light doesn't start up, but when I put the central ... [Read more]

How do I correct my Vaillant Boiler?

It's a Vaillant Turbo boiler, functioning fine as regards the central heating, but no longer supplying hot wat... [Read more]

vaillant heater?

why does my water only run hot when central heating on, won't come on otherwise

can i fit a 2 port valve to a gravity feed heating system?

Hot water is gravity fed through the boiler and through the coil in the hot water tank to heat the water. The ... [Read more]

low water temp from combi boiler?

Could anyone let me know what may be the problem. My combi boiler works perfectly on the central heating side... [Read more]

ferroli boiler cutting out?

My ferroli central heating boiler works fine for the hot water but keeps switching off on the central heating ... [Read more]

Hot water problems with Ariston Eurocombi boiler?

In short, my boiler will only provide hot water whilst the heating is on, the rest of the time it is either lu... [Read more]

central heating wont work?

I have a worcester 28cdi the hot water work's but the red light for the heating wont come on and the radiators... [Read more]

How can I fix my Potterton Puma 80?

My combi boiler has broken down, After lighting the pilot the system fires up and hot water is produced for ab... [Read more]

how can i change water filter on saunier duval?

My central heating works but i have no hot water, this is a combi boiler and have been told that i need to ch... [Read more]

POtterton Puma 80 Boiler Problem?

I have a potterton 80 boiler and the low pressure light is on even though there is plenty of pressure in the s... [Read more]

How can I fix my Glow-worm Fuelsaver 40B MkII?

Over the last few days the pilot light has been going out without warning, and has been very difficult to reli... [Read more]