How to mend ... Central Hot Switch

why is my central heating on constantly when timer off?

My radiators come on when the hot water timer comes on although the heating timer is off. All the radiators g... [Read more]

how can I fix my ravenheat combi white star LST80?

when I switch the central heating on it does work but the pressure guage goes up and when it stops the pressu... [Read more]

vaillant 242 boiler,no hot water,no indicator light,please advise???

hi,i am looking for some help i have a vaillant 242 boiler and the hot water as been going off for days at a t... [Read more]

Why does the Hawk II Optima keep turning on central heating without request?

I have a Hawk II Optima combi boiler which is around 10yrs old. I've pushed the selector switch to the disable... [Read more]

Glowworm Ultimate 40FF - main burner keeps going out and relighting?

The pilot lights, its continues to spark then the main burner lights then the main burner goes out after a few... [Read more]

Is my Fan faulty?

After having problems with my boiler not supplying any DHW or CH the last couple of days i am of the opinion i... [Read more]

Potterton Suprima/Suprima L. constant central heating?

We cannot get our central heating to switch off unless we switch off the boiler. When calling for hot water on... [Read more]

valliant boiler?

hi and thanks for taking the time to answer my question.... we cannot get any hot water for bath or shower o... [Read more]

Heatslave 15/19 boiler - keeps kicking in?

i All, We have a heatslave 15/19 which was fine until a couple of days ago. A guy came round from the water... [Read more]

how do i know if its broken?

i have a gas fire with a back boiler, the pilot light is lit but when i turn my hot water on it wont fore up, ... [Read more]

Faulty Ideal Classic NF80 Combi Boiler?

Hi, our boiler will not work properly. When it is switched for hot water only it fires even if the water is no... [Read more]

how do i light the gas on my worcester combi 24si?

my combi wont light when i turn on the hot water or central heating it is a worcester 24si is there an ignitio... [Read more]

worcester bosch 230 combi rsf?

No hot water, only when central heating on. I have identified the problem as being the diaphragm plunger is... [Read more]

worcester bosch 230 combi rsf?

worcester bosch 230 combi rsf Hi I have a worcester bosch 230 combi rsf and believe the Diverter valve is f... [Read more]

BAXI COMBI 105e cutting out problem?

3 year old BAXI 105e problem when DHW is selected pressure is 1.1bar all lights on except central heating.temp... [Read more]

glowworm spacesaver 38?

heating and hot water ok i have no manual i cannot have just hot water i have to wait for the radiators to get... [Read more]

how to fix my vaillant 242 e-h combi(fires up when not req)?

My boiler fires up every couple of minutes for about 10 seconds then shuts down again,there is nothing in the ... [Read more]

Potterton Puma 80 - Heating won't switch off?

Even though the central heating switch is set to off - the central heating won't turn off unless the boiler is... [Read more]

Why does the main burner(CF 40 furingas) start roaring at times?

Ref above my boiler is a Potterton Kingfisher free standing open flue gas fired boiler (approx 25 years old) a... [Read more]

Baxi Potterton Combi Boiler 105e?

I have got Baxi Potterton Combi Boiler 105e (Electro -Mechanical timer ) - the problem with it is that it no ... [Read more]