How to mend ... Boiler Heating Demand

why is my ferroli modena 102 coming on and going off ?

why is my boiler igniting when it feels like? it comes on when there is no demand for heating

Ariston Eurocombi boiler fails to fire?

Hi I have an Ariston Euro Combi boiler. For some time the burners have been slow to fire up on demand (on bot... [Read more]

halstead ace high problem?

Hi, I have a problem with my hot water and heating. The Halstead Ace High boiler does not come on when a deman... [Read more]

how can i fix my baxi combi 80 eco?

My Boiler keeps firing on hot water when no hot water is been drawen. The hot water DHW Pressure Differential... [Read more]

S Plan Plus System and Vaillant ecoTEC plus 831?

Vaillant ecoTEC plus 831 boiler is in and running the house heating and water. Control of heating is only by... [Read more]

worcester 24i rsf. intermittent pump and unreliable burner firing?

problem with boiler - when i demand hot water, the pump will work but sometimes burner will not fire up, somet... [Read more]

Hot water and heating working but only at low demand?

Im just wondering can you help my boiler is 21months old and Im being told the warranty is invalid because wor... [Read more]

Saunier Duvall F30E Hot water but no heating?

Hiya. Hot water operates fine however....demand for heat , boiler fires up ok, temp display increases to 77 de... [Read more]

Worcester Bosch 28 si II indicator fault light?

My Worcester bosh boiler for some time now has been losing pressure and letting out water from the release val... [Read more]

Fluctuating Pressure on Baxi 105E?

I recently had the expansion vessel replaced in my baxi 105e. (due to high pressure when heating on) . Now the... [Read more]

my ravenheat ls80 t boiler will not give heating when timer switched on?

no heating but hot water on demand from ravenheat ls 80 t bolier. what can i now do to fix it?

Worcester Bosh Boiler 24/28 si II?

I have a Worcester Bosh boiler that keeps losing pressure from what I believe to be the pressure release valve... [Read more]

Pump is sorted.How do i clean dhw heat exchanger Vaillant part no: 065053?

Pump is sorted by now. I have back hot water and central heating. But some problems with hot water persists. ... [Read more]

Problem with hot water demand?

I have a vaillant 824 E, problem with hot water demand - boiler kicks in on start up but temperature on boiler... [Read more]

greenstar 24i. No hot water?

No hot water delivery, the boiler kettles on the main heat exchanger with HW demand. Central heating demand n... [Read more]

worcester 24i rsf combi heating?

hi, when in demand mode my boiler fails to light. fan does not run or pump, but hot water system is fine and w... [Read more]

How to fix my Potterton Lynx Boiler?

My boiler had a problem with the ignition. The insulation had come off the wire to the sparker and it sparked ... [Read more]

Biasi 24s?

My friend as a nine year old biasi 24s.There is no hot water and the heating has a mind of its own.(it came on... [Read more]

how can i fix boiler?

i have a apollo boiler pilot light is on but when ask for demand either water or heating boiler does not fire ... [Read more]

Worcester 28i junior will not ignite?

Hi, I have the above model of boiler, when there is demand for dhw or heating the boiler tries to light, ... [Read more]