How to mend ... Hot Heating Not Working

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]

no hot water?

heating working ok flow of domestic ok but hot water not reaching full temprature

Main combi 24HE FLAME ERROR NO HEATING OR HOT WATER, PRESSURE IS AT 0, HELP?

hi can someone please help, our boiler isn't working, there is a flame error and the pressure gauge is at 0, w... [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]

potterton subprimo 80L heating not working but hot water is?

had the hot water on overnight low and no problem however this morning the heating has stopped workimng but t... [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]

My Johnson and Starley J50 warm air heater isnt working?

The pilot burner is lit but I am not getting any hot air. The pilot light of both the janus water heater a... [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]

Biasi boiler, have hot/warm water but no heating!?

biasi boiler is working for hot water (althouh the hot water doesn't get very hot) but not working for heating... [Read more]

ferroli domicompact F30 B boiler not working?

I have a ferroli domicompact F30 B boiler but it will not work all I did was turn off the power to kitchen plu... [Read more]

Boiler switches off water heating when the central heating is due to come o?

When the heating is timed to come on the light flashes but no heat appears and at the same time the water ceas... [Read more]

Problem with Ferroli boiler?

My Ferroli boiler was working fine but then showed fault F35 which is problem with electrical mains. I reset t... [Read more]

vailant 242e turbomax and the temp keeps fluctuating?

My central heating is working fine. But everytime we use the shower or the bath tub the water temperature keep... [Read more]

my central heating is working but i only get luke warm water ?

my central heating is working, but when i turn on the tap it fires up but the water does not get hot.

Baxi Main no domestic hot water?

Central heating working okay but the water through the hot tap is cold and the boiler does not ignite.

no hot water?

Central heating working okay but water through the hot tap is cold and boiler does not ignite.

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]

Worcester heatslave 20/25 fault with fan?

Hi, my boiler fan is running all the time, even when hot water / central heating is off. Everything else seem... [Read more]

glow worm ultimate boiler isnt heating my water up?

my central heating is working but my water isnt getting hot