How to mend ... Water Ch System

My 350 combi will only issue hot water if the CH system is on?

My 15 year old 350 combi has developed a fault in that if the CH is off and you turn a hot tap on, HW comes ou... [Read more]

SIME central heating system anti-freeze - how much?

I have a SIME friendly Format 80E boiler fitted in my static caravan. The CH system water was tested recently ... [Read more]

potterton puma ?

my potterton puma which is about 8yrs old has developed two faults, when you run the shower upstairs for more ... [Read more]

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]

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]

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]

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]

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]

Potterton Puma e80?

I moved into a property in Warwickshire that has a 12-15 years old Potterton Puma e80. We have two showers, on... [Read more]

Vaillant GB2 EH - Got DHW but no CH and its freezin!?

Hi Guys - am in desperate need for tips on how to fix our Vaillant VCW-GB-282 EH Combi. Installed about Apr 19... [Read more]

Potterton CH System will not work!?

I have Potterton Suprima Boiler which is heating water only. The CH system is intermittent and only occasional... [Read more]

how can i fix my domi compact f 24 b?

i have just fitted a ferroli domi compact f 24 b and my hot water is working but cannot get ch working.The wat... [Read more]

Boiler pressure issue (Worcester Greenstar Junior Cond Combi)?

Last night, I noticed 2 of my upstairs CH radiators were cool at the top, so I decided to 'bleed' air from the... [Read more]

can a combi boiler run hot water when the CH system is empty?

I have a glow worm 30ci combi boiler. A radiator pipe has sheared off (oops) right next to the wall it comes ... [Read more]

Baxi Bermuda Back boiler?

After draining down to remove a radiator, and refilling system, CH ok but no hot water,told that there is an a... [Read more]

No power to mu potterton control panel?

Up until yesterday my system was working ok, with the hot water starting every day. I tesed the CH on Wednesda... [Read more]

Hot water keeps boiling?

DHW (gravity fed HW pumped CH system; Potterton floor standing (?1200) balanced flue boiler replaced 6 years a... [Read more]

modena102 ch problem?

i have a modena 102 that heats water perfectly but on ch pressure rises boiler creaks and after 30 seconds ish... [Read more]

how do i repair safety valve discharge connection?

i have water comming from adischarge pipe and my ch system cannot be pressurised the make and modle of the boi... [Read more]

HELP!!!! Biasi Combi M90 24S No Pressure?

I have been in my house for a year. During that time I have had no problems with the boiler which is a combi f... [Read more]