How to mend ... Heating Water System

air trapped in worcester bosch 40 cdi ?

My worcester Bosch 40 CDI goes down nearly every time I manually switch it to radiator mode. It may run fine ... [Read more]

Potterton Netaheat boiler and heating system?

My heating won't come on unless the hot water is on and heating up. Once the water has reached it's temperatu... [Read more]

The pump appears to be operating when central heating is not on?

The water pump seems to be operating even when neither the hot water nor the central heating system is calling... [Read more]

siemens RWB9 Programmer Fault?

i have a fully pumped system with zone valves , one for heating and one for hot water, my problem is that when... [Read more]

Ideal Classic ff270 boiler keeps losing pressure?

The boiler is designed to operate at one bar pressure when cold. The sealed system has been charged (twice) b... [Read more]

WB 42 cdi hot water?

I seem to have air in the hot water system, the heating is bled and works fine, the boiler was working fine ti... [Read more]

central heating system?

had to drain central heating system to take of 2 radiators, which was successfully done. however once I turned... [Read more]

Sabre combi boiler canstantly ON?

Hi Can anyone help me please I have a Sabre Combi boiler and my problem is this. My heating is constantly ON ... [Read more]

Potterton powermax HE. Hot water but no heating?

I have a potterton HE boiler. I have no heating. The actuator is moving on the diverter valve and the pump is ... [Read more]

banging pipes?

i have an ideal icos he24 boiler.over the last 6 months the system has slowly developed a very very loud bang... [Read more]

How to repair a Potterton Boiler (Netaheat 10/16 Potteron GUK124788)?

From the heating system there is no hot water and the radiators are not heating up either. From the boiler the... [Read more]

halstead high ace?

my ace high works with hot water.every now and then it locks out and central heating works when it wants to.ho... [Read more]

thermo coupling?

my boiler has stopped heating the water, i repressure the system, it starts then cuts out,is this the thermo c... [Read more]

water is filling the header & expansion tank via the feed pipe to the pump?

Over the last few weeks I have noticed that the overflow pipe to the header tank has been dripping, but I have... [Read more]

Digistat SCR fault?

Hi I have a similar problem with the Drayton Digistat - hot water is ok - but no lights at all on the SCR reci... [Read more]

Flexicom boiler does not cut in for radiators?

Flexicom 30cx boiler. Cuts in and gives hot water when the taps are used. When I turn on the heating via a rem... [Read more]

how can i fix my kingfisher mf boiler?

system venting over boiler not shutting down on stat,overheat stat not cutting in either.new stat fitted and n... [Read more]

boiler flooded can it be fixed?

My heating has not been working since October 2011,no hot water either. Told by two plumbers that the ignition... [Read more]

i want to add a desludgeing agent to my central heating system ?

is it safe to add a desludging agent to any system at all , we have only one tank and were warned that a deslu... [Read more]

alpha boiler - hot water ok but only slight central heating ?????????

boiler is lighting and giving good hot water but the central heating is just lookwarm even after 3 or 4 hours ... [Read more]