How to mend ... Water Hot Heating Cold

Central heatin only works with hot water on?

I have a potterton boiler that only fires up when hot water is switchted on.Once water gets to required temper... [Read more]

Hot works fine and central heating is cold ( Baxi Bermuda 401)?

when i turn my timeswitch (Horstman,423 Diamond) on hot water only the boiler works fine and the water is very... [Read more]

Biasi Prisma 24SE...hot water switch resets on cold days!?

I have a Biasi Prisma 24 SE, which was serviced, cleaned and had a replacement diaphram fitted less than 1 yea... [Read more]

Baxi SOLO, New Fitted in 1991- pilot lights but will not stay on?

The hot water and central heating system was operating as normal but then we noticed that the hot water had go... [Read more]

halstead ace tap water not getting hot?

central heating ok when dhw selected water stays cold no leds come on model 47333-10 ace

what is wrong vaillant 242E,282E?

when i first run the hot water tap i get hot water for 30 seconds then goes cold same happens when i put the h... [Read more]

Worcester 240 combi - all lights on but no heating no hot water?

Hi, I have just moved in to a house and the boiler worked fine (well, it was heating the rooms but hot water w... [Read more]

The ferroli Moderna 80E Heating?

The ferroli combi heater is working fine for hot water, but although I have set the timers for the CH it doesn... [Read more]

Boiler not firing up. Help please im cold !?

Help, I have a Glowworm SpaceSaver 52, The boiler apart from hot water has been mostly off during the summer, ... [Read more]

glow worm 50?

i have glowworm micron 50works ok when it calls for hot water but will not always fire up for central heating ... [Read more]

Why do the diaphragms in my Vokera XL80sp keep perishing?

Ive had the boiler for about ten years now and its been reliable apart from the main (large) diaphragm in the ... [Read more]

boiler keeps going on and off (combi alpha 240e)?

when heating is on the boiller keep comeing on then going off, so radiators are hot then cold hot then cold, i... [Read more]

combiboiler minic24 hot water problems?

i have a combi mini c24 heating/hot water boiler and when i turn the taps on the hot water do... [Read more]

Hot water has stopped working on Vokera excell 80 SP?

Hot water has stopped working on Vokera excell 80 SP. I have tried to get water in every combination on my boi... [Read more]

How can I fix problem with Worcester Bosch 24CDi Combi?

I have just had a kitchen re-fit and the workmen took the radiator off to plaster. I now have had to turn the ... [Read more]

Hot water problems, cylinder not getting hot?

I have a back boiler heated vented system, there is central heating but no hot water after i flushed the sedim... [Read more]

Boiler fires up when demand for hot water but doesn't when demand for C/H?

I have a Potterton Netaheat Profile 80e boiler, Honeywell V4073A mid-position valve, Honeywell ST699B programm... [Read more]

Ariston A23/MFFI - no hot water without heating?

Hi everyone, something is wrong with my boiler. From sometime the hot water is too hot then getting cold and... [Read more]

Vokera Maxin 24e Lockout?

I am having problems with the Lockout Reset Button illuminating intermittently on my Vokera Maxin 24e, the con... [Read more]

Pipework Mix Up?

Hi there I recently relocated some pipework so that I could fit more ceiling joists to reinforce our loft conv... [Read more]