How to mend ... Boiler Air Water

Change diaphragm on Vaillant boiler valve?

I have got a Vaillant boiler model no VUW 242 EH and need to change the diaphragm on the diverter valve. Is it... [Read more]

Ideal Combi Logic boiler "L3" fault. ?

Whenever the temperature knob is turned up higher than half way, the boiler shuts down, flashing L and 3. Have... [Read more]

glowworm betacom 30 problem?

Hello folks, boiler is 2 years old, had plate heat exchanger cleaned/changed/cleaned...dhw sensor replace... [Read more]

how to fix my combi?

hot water ok turn heating on pump going but no heat all rads air out water topped back up so arrow is in the ... [Read more]

WB 42 cdi hot water?

I seem to have air in the hot water system, the heating is bled and works fine, the boiler was working fine ti... [Read more]

How to repair a Potterton Boiler (Netaheat 10/16 Potteron GUK124788)?

From the heating system there is no hot water and the radiators are not heating up either. From the boiler the... [Read more]

loud bag noise for few seconds till the boiler fires up,?

First thing in the morning when i switch the hot water on i get a loud bag, sound like air in the pipes. I hav... [Read more]

Halstead issues?

Have a Halstead Quattro with domestic water problems. Have fitted new diverter diaphram and heat exchanger, so... [Read more]

Firebird combi 90K problem with hot water?

we have a problem when the bath is running, it appears to lose its' pressure and seems to produce both air and... [Read more]

My ravenheat 100 won't fire up?

Boiler has been working fine since moving in 3 weeks ago,but noticed the water wouldn't heat up. And noticed t... [Read more]

alpha boiler - hot water ok but only slight central heating ?????????

boiler is lighting and giving good hot water but the central heating is just lookwarm even after 3 or 4 hours ... [Read more]

How can I fix my Worcester 28CDI RSF Combi Boiler?

Water is continuously bubbling out of the Automatic air vent on the top of the boiler. This continues to do so... [Read more]

Water Pressure & On/Off/Reset Selector Switch !?

My boiler is the Potterton Performa 24 Eco HE. I have two problems or maybe just one as I think they are conne... [Read more]

how can i fix my bosch worchester 24cdi boiler?

The water Led is flashing 5 times per second the guide says Air Flow fault (RSF) or FLUE GAS Spillage (OF)

heating, Oil boiler not running?

Having just drained my heating system to replace a number of failing radiators,I have re-filled the system but... [Read more]

How do I re charge my Worcester Greenstar 24 boiler?

I have bled my radiators, however the bar has dropped now from 1.5 to to 0 on the boiler. There are no instruc... [Read more]

Banging Pipes - Hot water only?

We have a worcester boiler (in our new house) which was fitted 9 yrs ago - for some reason it has been left as... [Read more]

Water Pressure Gauge rises too high on my combi?

Dear Friend Well I hope you are a friend because I need some advice, the pressure gauge o... [Read more]

intermittant fault on ravenheat csi85at?

on this combi when switched to hot water only boiler does not fire at all.on winter /summer boiler fires on ho... [Read more]

Potterton Promax 15 SL?

New boiler 1yr old fitted by BGas who also charged for a power clean?. British Gas home care changed fan last ... [Read more]