How to mend ... Need Really Hi Really Ch

How to drain a Saunier DUVAL boiler and CH system?

How do i drain down a Saunier Duval central heating system? Also how do i refill it? What "chemicals" must i a... [Read more]

Potterton Performa 24i HE. DHW ok but CH not working?

This boiler had been switched to DHW duties only over the summer and autumn. Now I switch to CH&DHW the CH is... [Read more]

My Puma 100e CH wont work?

my central heating was working a wee while ago but now it wont work at all. I can get hot water to work at al... [Read more]

How do you flush a sealed central heating system?

I've put some Fernox superconcentrate F1 in one of the rads and its been circulating for about a month or more... [Read more]

The locked out light has come on on my Halstead Ace high combi boiler?

The red locked out light has come on on my boiler and there is no CH or hotwater! Does anyone know what the pr... [Read more]

How can I select different on-off times for HW and CH?

At the moment I can only programme both to come on and off at the same time. I have a Potterton EP2002

Worcester 240 - one cold radiator?

Hi, I'd be grateful for your suggestions on the following problem - I's got me stumped! My Worcester 240... [Read more]

the water pressure on my ch is in the red area ?

how do i decrease the water pressure in my ch system

Baxi 105E Patchy hot water?

Our CH works fine, but the HW comes on runs for a few minutes and then cuts off for a few seconds then comes o... [Read more]

Cyber Home DVD player CH 300 model?

When power cord is pluged in, the power-on light is orange and not green as it should be , and so the device w... [Read more]

Ravenheat 85 cycling on/off?

My ravenheat 85 a works fine when asking for HW however when the CH is demanded the burner will ignite, burn ... [Read more]

Worcester 19/24 CBi works for 20 minutes before cutting out?

Had the boiler (4 years old) serviced yesterday, now it locks out with a flashing light after running the CH f... [Read more]

RAVENHEAT LS80 in consistent DHW + pressure probs?

I have a ravenheat LS80T and when i don't use the Heating the pressure stays perfect but when I use the heatin... [Read more]

Baxi combi boiler hot water sometimes doesn't kick in?

The CH is working fine but for some reason the hot water takes a long time to kick in and I have to turn the t... [Read more]

boiler not working properly?

we have a ravenheat combi rsf 100et. the problem is the heating fires up then goes off you have to keep switch... [Read more]

hw not working but CH is Baxi 80E?

Basically, we had some work outside and water was switched off about 3 weeks ago, pressure was dodgy so i ran... [Read more]

ravenheat c85t combi?

I have a ravenheat c85t condensing combi which appears to work fine apart from the oddity that after a few min... [Read more]

ravenheat 85 "a" reigniting?

Hi my ravenheat 85 a works fine when asking for hw however when the ch is demanded sometimes the burner will i... [Read more]

ferroli modena 102 how can i fix it?

ferroli modena 102 fires up on ch and hw for five seconds then bar light flashes and then boiler cuts out cha... [Read more]

28i junior CH problem?

I have a fault with the central heating of my worcester 28i junior. The boiler fires up and the radiators heat... [Read more]