How to mend ... Working Hot System

How do i change a three way Motorised valve?

Im 99% sure the valve has packed in ( its 20 years old ) its been a bit intermittent for a while now ( heatin... [Read more]

Hot water but no heating?

Hi i have a fully pumped two valve system which until recently has been working reasonably well, I say reasona... [Read more]

Worcester Highflow 400 RSF?

looks like we may be without heating and hot water for xmas. Heating stopped working at 8.30pm last night, ji... [Read more]

what is wrong with my Vaillant Sonnet 18?

The hot water is working fine but the heating system is not working. Can you tell me why, as it is a very old... [Read more]

Has the Fan Assembly truly failed?

Hello all I have a Glow Worm Ultimate 120FF boiler that serves the central heating in my home. The system ... [Read more]

How can i fix my 38cxi ultracom?

Has any one had problems with their cxi ultracom hot water not staying hot when trying to run bath or shower h... [Read more]

How can I get my Glow Worm Ultimate 100FF boiler working?

I have a sealed water sytstem with a pressurised Megaflow hot water tank. Occassionally the system pressure j... [Read more]

Danfoss Ras-D2 Valve Problem?

I have just had a brand new heating system fitted in my house; everything is working as it should. The problem... [Read more]

What are the symptoms of a faulty boiler stat ?

My boiler seems to be running for very short periods and the central heating hot water is not getting to the f... [Read more]

how can i fix my glow worm swiftflow 80? ?

boiler is kicking in when the hot water is used but the radiators are still cold, was all working last week, b... [Read more]

Worcester Danesmoor oil boiler venting hot water to expansion tank?

I have a Worcester Danesmoor Utility 26/32 oil fired boiler on a vented CH/HW system. When the boiler is runni... [Read more]

Heating system failing but boiler ok??

My thermostat is reading 17, and having been set to 20, the heating should be on. A flame is showing on the th... [Read more]

J25 Johnson & Starley hot air system - noisy FAN?

The heater is working but when the fan kicks in it sounds like a cat being strangled for about 5 minutes. It e... [Read more]

Baxi boiler - No heat but hot water and very noisey?

It is my friends heating system. She has a Baxi boiler not sure which one, but has a tank in the airing cupbo... [Read more]

boiler fault?

i found out the boiler wasnt working due to low pressure.i repressurised system and the heating came on as nor... [Read more]

heating?

hi i am having some problems with our central heating... to be brief we are in a three storey townhouse and a... [Read more]

Rayburn Driven Central Heating Problem - Upstairs Cold?

I have a Rayburn Gas CH system with a seperate pump. The cooker / boiler is in the basement kitchen with 3 ra... [Read more]

Heating works but no hot water?

I have an Ideal Icos HE15 Heat Only boiler which is about 2 years old. Last week the hot water stopped work... [Read more]

I have a vaillant eco tec and the pressure is only 0.8. ?

I have a vaillant eco tec and the pressure is only 0.8 so therefore the heating is working but there is no hot... [Read more]

maxim 28e?

i am getting hot water but no heating to rads ,presser on system is 1.5 bar bypass is not blocked mikerow swit... [Read more]