How to mend ... Hot Heating Demand

Biasi 24s domestic hot water problem?

Burner will not ignite when the demand for hot water is received, unless the central heating is also turned on... [Read more]

Sabre HE 3 second blinking green then flashing red when on?

Hello. My Sabre HE stopped working this morning after working fine. I have done lots of searches and tried t... [Read more]

Glow worm Flexicom SX18?

The water pressure keeps dropping after the boiler is demanded ie hot water and central heating, but is stead... [Read more]

Intermittent boilet fails to fire on heating?

I have a 5 year old Glow-worm CX35i controlled by Drayton Digistat SCR and analogue timer (on the panel). The... [Read more]

F_5 F_6?

flexicom 30cxboiler my demand for hot water is flashing between F-5 and F-6 when my heating is off can you t... [Read more]

why is the red light on my sanuie dauval boiler comeing when no demand ?

why is my sanuie dauvel boiler red light flashing when no demand for hot water or central heating is being cal... [Read more]

low pressure fault?

On my baxi 105 he the 60 light flashes when i demand hot water and i dont get hot water, the heating did used ... [Read more]

Ferroli F30 fault?

Ferroli F30 in Heating and Hot Water mode runs for approx. 5 seconds then cuts out. The boiler doesn't display... [Read more]

My Vaillant VCW GB 280 H combi-boiler, pump keeps running ?

The pump on my Vaillant some times keeps running after the heating and hot water demand have switched off? Th... [Read more]

Boiler Vaillant 824e turbomax ?

central heating has stopped working. it was connected with wireless thermostat, intially i thought something i... [Read more]

Potterton perfoma 30HE?

Had new heat exchanger put in. When CH is switched on the boiler runs for a minute and cuts out, goes into mod... [Read more]

what component?

what component changes over the flow of water between hot water demand and central heating demand

Worcester bosch 2.8i junior, cuts out with red flashing light?

My boiler has been working ok through the summer, heating hot water on demand, but now its getting time to put... [Read more]

Halstead Ace Boiler, Power Light Flashing?

I have a halstead ace Boiler, When i demand hot water or heating i can hear the boiler fire up, then it stops ... [Read more]

worcestor greenstar 28i junior fault?

Have intermittent fault with wb junior 28i. shuts down Blue flashing light. I reset, fires up and runs. Fault ... [Read more]

no hot water on demand worcester 24 cdi?

Hi when the hot water tap is turned on the boiler dosnt fire and the red light dosnt come on.. however when th... [Read more]

Worcester combi greenstar intermittently not starting up/EA error code?

We have a 3yr old Worcester Greenstar combi boiler that is playing up. It has been intermittently not firing ... [Read more]

how can i fix my vaillant t ecomax 824/2 no heating?

there is hot water but no heating . the fault code is S30 - no external heat demand . It has never gone wrong ... [Read more]

baxi combi 80eco?

Hi I have a baxi combi 80 eco boiler. The system preasure was too high on examination but has now been bled an... [Read more]

Bosch Worcester CD24i not delivering hot water properly?

When hot tap turned on water demand light comes on and burner ignites, water begins to get warm. Then after ab... [Read more]