How to mend ... Heating Valve Boiler

Poor hot water temperature with heating on?

I have a Vaillant Turbomax combination heating boiler. When the central heating is operating & a hot tap is... [Read more]

Glow Worm Compact 75p pressure build up?

When i turn on my central heating after about 15/20 mins when the system and radiators are hot the pressure ga... [Read more]

How can I fix my Ideal Classic FF250 central heating boiler?

Hi, We have an Ideal Claassic FF250 central heating boiler that appears to trip our RCD, leaving us with no e... [Read more]

Vaillant Turbomax VUW242E No hot water?

I have a Vaillant Turbomax VUW242E boiler,Heating is ok but not getting any hot water. I have replaced the DH... [Read more]

Overheat cut out worcester 9.24 electronic boiler?

Had no central heating but hot water ok, boiler shuts down after 2 mins, found (eventualy) that the thermocoup... [Read more]

domestic water safety valve leaking on Glow-worm 30 ci plus?

Water leaks out of the 10 bar domestic safety valve on my boiler when it has been on for a while, its running ... [Read more]

Central heatin only works with hot water on?

I have a potterton boiler that only fires up when hot water is switchted on.Once water gets to required temper... [Read more]

Ferroli optima 701 (combi boiler)?

The water pressure in the boiler creeps up to 3 bar, I have previously reduced the pressure in the system by d... [Read more]

Central Heating Problem - Potterton Flamingo 50?

I have a Potterton Flamingo 50 boiler, which caters for the central heating aswell. My radiators upstairs all... [Read more]

Glow-worm combi boiler 100e information urgently needed?

where is the diverter valve on a Glow-worm 100e combi boiler and what do i need to do to change the diaphragm ... [Read more]

hi how do i turn the heating off but leave water on?

Got regular boiler ,stat is down, programmer hot water switch is on, heat switch is off but heating still come... [Read more]

Pressure rising each time boiler used?

Have Glow-worm Combi 30ci plus. Had the (cracked) expansion vessel replaced after leaking. Boiler pressure now... [Read more]

how can i fix my vaillant vcw gb 240?

the fan on the boiler runs constantly, it gives hot water but no heating. there is presure of 1.5 bar i have o... [Read more]

pressure fault on combi glowworm 30ci plus?

Ref above boiler - i noticed presure drop and cut out at .3 bar. refil didnt work so i replced fill loop. all ... [Read more]

boiler pressure runs very high when heating is on?

boiler pressure runs very high when heating is on. Pressure valve opens and vents water but pressure does not ... [Read more]

Why do the diaphragms in my Vokera XL80sp keep perishing?

Ive had the boiler for about ten years now and its been reliable apart from the main (large) diaphragm in the ... [Read more]

How can I lit a Myson 700C Marathon boiler?

I have just moved to a new house. Before I moved in, the main gas valve was switched off by the previous owner... [Read more]

Vokera Linear 24 timer fault?

The boiler works fine in both hot water and central heating modes until the timer is set. When the time is rea... [Read more]

h6w can i fix my saunier duval f23e boiler?

radiators keep getting hot when the hot water is in use even though heating is switched off at the main switch... [Read more]

Glowwork Ultimate 50 boiler - pilot keeps going out?

The pilot light keep going out but immediately relights itself so I am getting hot water and heating. I have h... [Read more]