How to mend ... Serious Boiler Heating Red

Ravenheat Fan Combi Boiler CSI85 not firing?

Hi, I have had to replace the fan & housing as the old one kept grinding to a halt. When the hot water tap is ... [Read more]

saunierduval f23e boiler pressure needle rises to red marking 4bars?

I have a f23e sanier duval boiler.The pressure gauge rises to 4 when we put the heating on and then water star... [Read more]

sauni duval boiler F23E?

The water pressure needle goes to red marking ( 3to 4) when i use the central heating and water starts loosing... [Read more]

Constant blue light?

Do gas boliers always have a blue light, even when the heating and water are off? Mine goes and am just wonde... [Read more]

central heating switched to off, some radiators red hot all the time ?

we have a 20 yr old potterton ep2000 boiler. even when we switch the central heating to off, there are 3 radia... [Read more]

How can I fix my valiant boiler?

Our boiler is a few years old but the last couple of years we have had a problem with it cutting out and a red... [Read more]

F15 fault?

Hi, I have a F30E Theme Classic and have just replaced the 3-way valve as it had split (again). I have now ins... [Read more]

worcester bosch 35 cdi ii :only get hot water when heating is on????

Hi I have a worcester bosch 35cdi ii boiler and when I put the hot water tap on its cold and the red light doe... [Read more]

Ravenheat LS100T combi boiler?

The boiler is not working on either the hot water or the central heating. When I go to switch it on the green ... [Read more]

Baxi 108e failure?

- I accidently asked this question as an answer. Here it is again. -My central heating is working OK. -If ... [Read more]

what is an F2 error on glow-worm 30ci?

my glow worm 30ci was working fine until a week ago, i noticed that the radiators were cold, checked the boile... [Read more]

Ravenheat LS100T?

The boiler is not working on either the hot water or the central heating. When I go to switch it on the green ... [Read more]

How can I get my boiler (Sime Super Four) restarted?

The small red light on the front of the boiler is flashing and I have lost heating & hot water facility. What ... [Read more]

Heating or hot water not working!?

Hi, I have a Worcester 24i RSF boiler, it was working fine yesterday. Turned on the water to have a shower thi... [Read more]

ideal classic f350 pilot wont light boiler wont fire up?

this is a combi boiler, i have no hot water or heating, have followed all relighting instructions including th... [Read more]

How can i fix my ariston micro genus 23?

Hi,My pressure reading when off is almost zero(first line in red)boiler will turn on and run fine but then the... [Read more]

Does anyone know how to reset the alarm on wireless thermostat receiver?

I desperately need help...3 years a go i had a new heating system installed with Britsih gas. Yesterday i ... [Read more]

lockout red light?

from cold my heating comes on when the room stat gets to the right temp the boiler switches it off when temp d... [Read more]

Glow-worm compact 100e. lockout light?

the lockout red light regularly come on and the boiler will not provide either heating or domestic water.

Boiler fault ?

Can someone tell me what’s wrong with my Britony 80 se boiler No hot water or heating Problem Light 38 goe... [Read more]