How to mend ... Boiler Will Not Heat Water

How can i fix my valient combi boiler?

my valient boiler does not heat water, and comes up F28, how do I fix it?

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]

Header tank overfowing due to hot water flowing in?

We have an old indirect heating system fired by a gas back boiler. When fired up to heat water only, hot water... [Read more]

Ravenheat boiler?

My Ravenheat boiler won't fire up when set to hot water only, meaning that, in summer, I have to waste fuel in... [Read more]

centeral heat heating systems works?

but no hot water comes out of the hot tapes at all .their dry.we live in a bunglow.we have afloor standing gas... [Read more]

Worcester Heat Slave 20/25 boiler. Very Low pressure?

Hot water pressure is very low. Water temp OK. Full cold water pressure. Water meter confirms no leaks. For... [Read more]

High pressure on my Optima Ferolli 901 central heating?

Hi, I have a Ferroli optima 901 . I had problms with the DHW and foolishly adjusted this on the mod gas valve... [Read more]

how to fix my medway boiler?

i have a medway boiler when i put the hot water tap on the pressure seems high and the gas flames are only hal... [Read more]

Advice desperately needed: no hot water or heating?

I am a new house owner and are having issues with the central heating and hot water. As of sunday, it went off... [Read more]

I have plenty of hot water but no heat in my radiators?

my boiler fires up when i turn my hot water tap on but when i turn up the thermostat, it doesn't fire up and i... [Read more]

vokera 80 sp combi boiler?

when heating is switched off ,on the boiler and the stat is off no hot water taps are open,boiler fires up by ... [Read more]

How can I fix my Potterton Ultra2 boiler?

When my boiler first starts up, everything works perfectly. i.e it starts to heat the water and all indication... [Read more]

my potterton performa 24 the hot water has problem - it comes hot and the?

the hot water comes hot and then cold, hot, cold, hot. Is heat exchanger or diaphragm or do i need to power... [Read more]

how can i fix my glow worm 30 cxi?

Hi, I have a glow worm 30cxi boiler and have a problem that hopefully someone can help with. The problem... [Read more]

Why is the water not heating up?

I have swiched the CH off now the weatehr is hot but now the hot water doesn't heat up - the heating control p... [Read more]

How do I increase the water pressure in my worcester 24cdi?

The pressure in my boiler is below 1 and the water will only heat when the central heating is on? How do I inc... [Read more]

Oil Boiler will not fire up after changing thermostat controller?

Hi, I have an oil boiler (Worcester Danesmoor 15/19), which I use for the heating (I use the electric for the... [Read more]

how to fix britony combi se c&m chaffoteaux & maury?

friend of mine has a problem with her boiler.It is leaking water about a mug full a week.It keeps trying to fi... [Read more]

tepid water from worcester bosch 24cdi?

i am only getting tepid hot water from my combi boiler. central heating working fine. i have change the heat e... [Read more]

potterton profile 40e can't be controlled by programmer?

The boiler is working and provides both hot water and heating but runs continuously, even with the programmer ... [Read more]