How to mend ... Boiler Demand Hot

valliant ecomax 835 e ?

boiler works bakwards heating only works when hot water demand and hot water when heating demand replaced dive... [Read more]

Advice on possible reasons for Combi Boiler problem?

I have a Worcester Bosch 28si Junior Combi Boiler, (3 years old). No problems until very recently when having ... [Read more]

No hot water on Worcester 28CDi?

I have a Worcester 28CDi combi. The CH works fine but the DHW has a problem. When i open a hot tap the red lig... [Read more]

Worcester GreenStarHE Combi Boiler: No Hot Water from Taps?

We have a Worcester GreenStarHE Combi Boiler (4 years old). Today, out of the blue, hot water no longer comes ... [Read more]

potterton puma 100e combi keeps locking out ?

the central heating works fine until hot water is called for then when demand ends sometimes the boiler boils ... [Read more]

how to fix my vaillant turbomax plus 282/2e combi?

re: vaillant turbomax plus 282/2e combi boiler. Problem with c.h coming on when internal timer in 'off' and ro... [Read more]

worcester highflo 400 no heating?

my worcester highflo 400 combi gives me hot water but no central heating boiler fire for on demand water but n... [Read more]

Worcester 240 Boiler. Water is hot with tap half open, cold when fully open?

I have a Worcester 240 gas boiler. Recently, I've noticed that if a hot water tap is partially opened there is... [Read more]

vokera option boiler fan running cotinuously ?

vokera option fan running contiuously even when pressure switch disconnected. running when no demand for heat ... [Read more]

how can i fix my worcester bosch 230 combi boiler?

The flame doesn't ignite when I create a demand by turning on the hot water or heating

Potterton Puma 80 - No hot water?

Potterton Puma 80 works fine with central heating, but without CH on, it does not produce hot water. At hot wa... [Read more]

Worcester Bosch 24CDi, switches off during HWD?

I have a 24CDi boiler, which lately has been switching off when hot water is demanded. It switches off and bac... [Read more]

how can i fix Baxi Bahama 100 Combi?

boiler will not ignite on demand for hot water or heat. all indicator light and pressure is satisfactory

Baxi 105e - Flashing HW LED?

The normal graan hot water led keeps flashing after a demand for water. The boiler is firing and eventually th... [Read more]

heating no hot water?

haveing problems with worcester 24 si boiler working in central heating no problems but will not fire up on ho... [Read more]

Vaillant VCW GB 182E Combi Boiler?

The boiler provides hot water on demand but the central heating will not come on despite the boiler, thermosta... [Read more]

vokera 24e boiler doesnt relight?

Usually in the morning, central heating working fine. Then use hot water as normal, but once demand form hot w... [Read more]

Baxi combi 105HE boiler fault on the heating side?

I have a Baxi 105HE combi boiler. When the hot water is in demand the boiler will run ok no matter how many t... [Read more]

Why won't our boiler (Worcester Bosch 230) pilot light ignite?

Why won't our boiler (Worcester Bosch 230) pilot light ignite? It was turned off for a few hours for a radiato... [Read more]

Baxi 105HE Heating fault?

I have a Baxi 105HE combi boiler. When the hot water is in demand the boiler will run ok no matter how many t... [Read more]