How to mend ... Heating Boiler Circuit

My boiler pump runs continuously and fires even when timer switch is off?

I have a potterton boiler, potterton time switch with HW and CH having separate controls. The boiler recently... [Read more]

what is wrong with my boiler?

my boiler is 18 months old, model Isar HE30, everything has gone off. I have no heating or hot water, does th... [Read more]

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]

thermoclassic f30/e plus losing pressure?

the above boiler is constantly losins pressure over a couple of days but there are no leaks on the heating cir... [Read more]

Ferroli Modena 80E boiler is heating water outwith timer periods?

Ferroli Modena 80E boiler, about 7 years old. Various problems being encountered over the last 6 months: N... [Read more]

How do I fix my potterton lynx II?

My potterton lynx II combi boiler is not working correctly as the hot water circuit is fine but the heating sy... [Read more]

combi boiler and no heating?

a plumber that came out said i have to have it attached to at least one radiator to provide a loop in the cir... [Read more]

Change from Gravity feed to combi boiler?

The existing c/heating is from a Potterton conventional boiler gravity fed hot water from storage tank in airi... [Read more]

how do i fix my heating system with a ariston microsystem 21 boiler?

i added a towel rad in the toilet on the downstairs circuit, but i cannot seem to get all the rads downstairs ... [Read more]

how can i fix halstead finest gold boiler?

my halstead finest gold boiler remains on all the time even when room state is turned off , when turned off at... [Read more]

Vaillant Turbomax No Water/Warmstart/Heating S.33 Error?

Hi, I have moved into a house with this dreadfull boiler. Hot water has been intermittent i.e takes ages to... [Read more]

Problem with Vaillant TurboMax VUW 242E, fan/boiler not running?

My boiler had divertor valve problem in past, plumber replaced it for a reconditioned one-it lasted about 2 mo... [Read more]

What is wrong with my Ferroli Modena 102?

I'm having a pilot flame problem with my boiler. For the last month I have noticed that the pilot light and fl... [Read more]

Sabre 24 Combi boiler problem?

With the filling loop removed on my 18 month old SABRE 24 combi the pressure gauge on the heating circuit cont... [Read more]

my glow-worm micron 60ff?

my boiler will fire up at the set time[diggi timer heating only] but once all the rads[7 doubles] are hot it ... [Read more]

Britony 80 Combi Boiler?

When I set the timer for the central heating to come on (manual clock) it attempts to ignite but keeps trippi... [Read more]

loss of water in the c.h.circuit?

I have had a baxi bahama in my bungalow now for around 4 years and have a fault with the central heating side ... [Read more]

Myson Apolo 30s does this use 240v mains switching?

I have had to replace the main timer on my central heating system. I have gone for a siemens RWB7 electronic t... [Read more]

Brotony Combi SE, flashing 60 light?

According to the 'helpful' manual, it says the 'ionisation circuit board is faulty' So, which ones that. We... [Read more]

ariston 23mffi?

My Ariston 23 Mffi combi boiler will not fire up. A heating engineer said it could be the fan or the circuit b... [Read more]