How to mend ... Controller Hot Water

combi oil Worcester greenstar heatslave 12/18 switches off?

I have a internal combi oil Worcester greenstar heatslave 12/18 Its has a built programmer and Hot water t... [Read more]

danfoss SET3E contlolled heating system ?

In my Danfoss SET3E heating controlled system I can't turn the water heater section OFF! The switch on the... [Read more]

potterton ep2002 programmer?

I have a potterton ep2002 programmer. The central heating controller comes on but does nor fire the boiler. Ca... [Read more]

EP2002 programmer?

Hi, I recently replaced my old potterton controller for a new EP2002. I have recently noticed that when I just... [Read more]

E1 fault on digistat room control for Worcester Bosch Greenstar Junior 24i?

Hi, My Greenstar Junior 24i/28i has hot water, but no heating. The digistat room controller is showing E1 fa... [Read more]

Potterton Netaheat - no heating without hot water?

Boiler will only fire up when "hot water" selected on controller (EP2002). When hot water is on, radiators al... [Read more]

siemens RWB9 Programmer Fault?

i have a fully pumped system with zone valves , one for heating and one for hot water, my problem is that when... [Read more]

Why are the downstairs radiators cold when my heating is on?

I have just moved into a three storey house with a Vaillant boiler and a Telford Tornado water tank. When I h... [Read more]

1980's Potterton boiler fires up, but radiators not heating?

My old boiler, regularly serviced, fires up, but the radiators don't get hot and I don't think the water is ci... [Read more]

potterton ep2000?

Central Heating slider is not working. Hot water seems OK and lights the boiler but no joy with the CH switch.... [Read more]

Programming a Siemens RWB9 controller?

When programming the hot water I want to have it on forst thing in the morning, then again early in the evenin... [Read more]

Boiler cutting ouit?

We have recently had a new central heating system fitted, and are having problems, what we have is the boiler ... [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]

boiler is overriding controller. ?

switching hot water off on controller, but boiler does not respond and continues to heat water supply to radia... [Read more]

Potterton EP2001?

We have a Potterton EP2001 controller for our boiler. Since switching the heating back on we cannot control t... [Read more]

Potterton EP3002 spare sliders?

Hello, I have a Potterton EP3002 controller, unfortunately both the sliders on the front for the hot water ... [Read more]

new valve and pump fitted heating fine no hot water?

Just had an engineer to fit a new c/h pump and 3 way honeywell v4073a motorised mid position valve to a combi ... [Read more]

RBW9 cannot get Central Heating without heating Water?

I can switch my controller to have Central Heating with Domestic Hot Water. I can switch on Domestic Hot Wat... [Read more]