How to mend ... Water Heating System Boiler

How do I increase the pressure on my Bosch condensing boiler?

I have a Worcester Bosch Greenstar 24i junior condensing boiler. It seems to be functioning fine - hot water a... [Read more]

Hot water works but not very hot. Heating comes on but when warm goes off??

Hot water works but not very hot. Heating comes on but when the radiators are warm the burner cuts out and rad... [Read more]

how can we clean old heating system?

is it safe to do power flush cleaning in 17 year old system. all pipe are 17 year old. boiler is not working e... [Read more]

How do I fix my potterton lynx II?

My potterton lynx II combi boiler is not working correctly as the hot water circuit is fine but the heating sy... [Read more]

Glo Worm Swiftflow 80, noise from boiler when heating off?

Glo Worm Swiftflow 80, when heating is off we get a constant humming/burring noise. Boiler is situated in the... [Read more]

My alpha 240e boiler gives luke warm hot water?

The hot tap is only properly hot if the heating system has been on for 15 mins. If not the hot tap will only g... [Read more]

How can i fix my Potterton Heating system/Boiler Mate II?

I have a heating system that supplies constant hot water (and heating), (it is not a combi boilder). My hot ... [Read more]

i have a vaillant 837e boiler which indicates f24 in the display panel?

my vaillant 837e stops heating water and central heating once or twice a day,when it does this fault code f24 ... [Read more]

loss of pressure on baxi boiler?

boiler losses pressure from 3 bars to nil every 5 hours,cannot find any leaks on central heating pipes or radi... [Read more]

Can I run my boiler without the CH pump for Hot Water only operation?

My heating system comprises new(ish) boiler (Potterton Suprima 100), hot water cylinder (with cylinder jacket)... [Read more]

Glow-worm K.F.B... how to fill??

my brothers central heating sounds like a kettle without water when he turns it on, the pump in the upstairs a... [Read more]

Small Black bits from hot water system?

I am seeing small , what appear to be plastic bits, in the hot water - eg after running a bath. Its an old ... [Read more]

Low pressure in my boiler?

My central heating system occasionally loses pressure and falls below the required water pressure level and lo... [Read more]

Oil Boiler Pressure Gauge fluctuating?

I have had a new Worcester Bosch Oil Condensing Combi fitted (Aug 07). The installer set the red gauge at 1.5 ... [Read more]

Baxi combi boiler?

No hot water through system, even though central heating is working

Potterton combi 80 boiler?

I have re pressurised the expansion tank as suggested. There is no water coming from the valve on the unit nor... [Read more]

Why does my heating switch off when water due to come on?

When my hot water is manually started or programmed to start the heating switches off completely. Why? It's no... [Read more]

Just changed 2 rads and boiler fires up but then shuts down?

I have just changed 2 radiators and re pressurised the system to 1 bar - Baxi Bahama 100 Combi Bolier. When I ... [Read more]

Further to Heating, but no hot water!?

With ref to the previous (very prompt answers) It's a pumped system! Can I still bleed as per answer 3 or is... [Read more]

Heating, but no hot water!?

Had to change a rad, so drained down compleat system, inadvertantly drained hot water as well!! refilled and b... [Read more]