How to mend ... Boiler Fires Water

Boiling over into Header tank?

We have a Potterton Netaheat 10-16 Boiler, which fires up OK, and gets very hot as do the pipes going to the p... [Read more]

POTTERTON PERFORMA 24 NO HOT WATER BUT CENTRAL HEATING FINE?

as soon as the hot water tap is opened the pressure on the boiler increases 0.5 bar to 2.0 bar. and the boiler... [Read more]

Hot water problem Worcester Heatslave 20/25?

The boiler fires up to provide hot water if a hot tap is used- even if the boiler control button for hot water... [Read more]

boiler not working properly?

we have a ravenheat combi rsf 100et. the problem is the heating fires up then goes off you have to keep switch... [Read more]

hw not working but CH is Baxi 80E?

Basically, we had some work outside and water was switched off about 3 weeks ago, pressure was dodgy so i ran... [Read more]

ferroli modena 102 how can i fix it?

ferroli modena 102 fires up on ch and hw for five seconds then bar light flashes and then boiler cuts out cha... [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]

Screeching on my combi boiler ?

Just recently my Vokera combi boiler has started to make a really loud screeching sound when the heating or ho... [Read more]

biasi 24 fault finding dhw?

hi there have a biasi 24s i seem to be having a problem with the dhw when i turn the hot tap on the water some... [Read more]

Saunier Duval combi - central heating OK, yet no hot water?

Very useful to have these forums, so can anyone please help, or is it the changeover valve, as someone else's ... [Read more]

how can i fix my ravenheat boiler?

hi i have a ravenheat boiler on the blink i have no hot water and heating i have just had a new gas valve fitt... [Read more]

how can i fix my boiler?

we have an older type baxi boiler when we swith either the water or heating on the baxi fires up for a couple ... [Read more]

fix my halstead boiler?

my halstead quattro gold boiler sometimes fires up when you shake the clock although the hot water does not fi... [Read more]

water heating?

I have a myson medway super, multipoint water heater.when the hot taps are tuned on the boiler normally fires ... [Read more]

heating?

sime 90 combi no hot water unless the heating is on boiler fires up then clicks off

Worcester 24i RSF-L Combi problem?

When I turn the hot water tap on the boiler fires up and hot water is dispensed from the tap. However after a ... [Read more]

Worcester 24i?

Hi drained down the system to repair a couple of weeping radiators, refilled the system to 1.5 bar vented all ... [Read more]

Boiler running then locking out?

I have a Worcester domestic boiler and a full tank of 28 second burning oil. My boiler fires when it is calle... [Read more]

438 at low gas rate?

have recently fitted vaillant 438 ecotec open vent boiler. fires at full rate for aprox 20 seconds then goes t... [Read more]

my vaillant Sine 18 combi boiler has fault?

While I appreciate that it's knocking on a bit, like myself, I feel that there is plenty of life left in the o... [Read more]