How to mend ... Where Valve High Boiler

Combi Pressure too high!!?

Hi there. I have a Halstead 30/90 combi boiler which, since I replaced the diaphragm in the diverter valve, is... [Read more]

filling water in a boiler?

I have an old worcester high flow boiler and the pressur is low we have the water tap but do not know where th... [Read more]

How can I fix:?

Vokera Linea 24 combi boiler. Boiler starts up fine. Water heating fine, although preasure does gradually dr... [Read more]

Betacom 24c boiler pressure too high?

Boiler pressure is indicating 3 Bar. I have taken out about 2+ gallons of water from a drain valve on the near... [Read more]

ravenheat csi 85?

hi I need help with my boiler. When i run the hot water the boiler lights normal but the high flame on the b... [Read more]

GlowWorm Ultracom 30cxi boiler high pressure ?

I have a GlowWorm Ultracom 30cxi boiler, fitted 2 years ago. Recently had a problem whereby the pressure bar ... [Read more]

Halstead Ace High - Overheat and Lockout?

Hi, We have a Halstead Ace High. Within about 45 seconds after drawing a substantial amount of hot water (t... [Read more]

Thorn Apollo 15/30B?

The problem is the boiler has gone out. When I tried to re-light it i have done the following as advised by t... [Read more]

Halstead ace high boiler, ch not working?

my central heating is not working but the hot water is fine, think it may be the diverter valve but not sure

ace high boiler problem?

replaced diaphram and diverter valve service kit , ch working ok , in dhw only mode both central he... [Read more]

glowworm betacom boiler, pressure too high?

i have a glowworm betacom 30c boiler and the pressure is too high. it went too low and i filler it via the fil... [Read more]

High pressure and hot at both rads and water?

I have a canray 5 oil boiler. The circulation pump had ceased and has now been replaced. However I have some w... [Read more]

How can I stop my Ravenheat CSI 85B tripping out?

I had a new Ravenheat CSI 85 B T installed today. It worked for the plumbers who installed it - they left and ... [Read more]

water driping out of blow off?

are boiler is the ace high version it is holding pressure when it is not in operation. But when we put the hea... [Read more]

Flood due to boiler ???

A few weeks ago we noticed warm/hot water pouring out of the eaves of our house, upon inspection we found that... [Read more]

How do I lower the pressure in my Vokera boiler?

Hi, I posted this question elsewhere but then realised this is probably its proper home! I had my Vokera Co... [Read more]

How do I lower the pressure in my Vokera boiler?

Hi, I seem to have the opposite problem of most people on here so I hope someone can help me! I had my Voke... [Read more]

my ferolli optimax hc 31 c boiler flashing a1?

my boiler is flashing a1 on screen pressure was high on 2 drained the valve to lower pressure now gone to 0 tu... [Read more]

Potterton Promax 15HE Boiler -relay clicking problem?

Hi, Need some help please. A 6yr old Potterton Promax 15HE on an unvented boiler installation has suddenly st... [Read more]

How to pressurise expansion vessel?

Vaillant Combi boiler VCW 282 central heating expansion vessel needs to be re pressurised as it is causing hig... [Read more]