How to mend ... Hot Water Hw

low water temperature os my saunier duval SD623 boiler?

ow water temperature os my saunier duval SD623 boiler? the heating works ok but the hot water is not very h... [Read more]

Vokera Linea Max - hot cycling after re pressurising expansion vessel?

I have re pressurised the expansion vessel to 12psi having isolated and drained the boiler. The vessel now hol... [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]

fix Worcester 350 combi boiler ?

I have a Worcester 350 combi. Heating operates fine. Hot water runs fine except for the shower. Think reduced ... [Read more]

How can i fix Ferolli Modena 102?

When calling for hot water,boiler fires up and keeps running. Water sometimes hot but mostly cool.Fitted new h... [Read more]

No heating, but Hot Water works fine Vaillant VuW 242 failure: F.28 ?

In my case F.28 comes ONLY if heating needs to start. If I open the hot water tap during CH ignition attempt,... [Read more]

Potterton Netaheat 16-22 HW doesn't work without CH?

I have had this problem with our Potterton Netaheat 16-22 Boiler for a while now. It is fine during the winter... [Read more]

Why can we only get heating when hot water on also now(Dual programer)?

We recently needed to replace head valve due to pump over run problem.(Boiler is Potterton Profile) On putting... [Read more]

Sime super 90 plus problems?

Hi, We have a super Sime 90 plus boiler and about a year ago we had to change the dreaded diaphram in the dive... [Read more]

Potterton Profile 100 CH but no HW?

My boiler seems to fire up ok, do the central heating ok, but there is no hot water at the taps/shower.

Thorn EMI Apollo boiler why want it heat my radiators?

my boiler is not heating my radiators just giving me hot water the settings r set 4 hw&ch ?

How can I fix my Potterton EP2000 programmer?

The CH and HW letters keep flicking on and off when the heating comes on which is turning the bolier on and of... [Read more]

Worcester Bosch Highflow 400 rsf boiler problem?

I have a problem with my Worcester Bosch Highflow 400 rsf boiler. If hot water is on, I cannot get central hea... [Read more]

no hot water from halstead ace high 47-333-16 HW/CH boiler?

i am unable to get the hot water to work but i do have working central heating. The boiler seems to fire up b... [Read more]

Vaillant 282 water pump runs continuously?

Pump runs all the time when either hot water or/and central heating is switched on. During winter holidays I l... [Read more]

Potterton Puma 80, Cold radiators?

Hi everyone. I have had no end of problems with my Boiler, but i have fixed all of them myself. But this on... [Read more]

mid position actuator?

A couple of day's ago I had no HW but I had CH. It seemed that the lever on the actuator was stuck to the rig... [Read more]

Ideal Icos Boiler, Heatrae Sadia CL170, Reliance Pressure gauge?

My CH/HW system consists of the above components plus a room thermostat and control panel beside the boiler. A... [Read more]

Worcestor 350 HW but no CH?

The burners won't ignite when CH is selected, the demand light comes on but no ignition. When CH is turned off... [Read more]

How Can I Fix A Potterton EP2002 Heating System?

My daughter has a Potterton EP2002 system with a Potterton Suprima 40L boiler and a MPE322 diverter valve. Th... [Read more]