How to mend ... Problem System Hot Water

what is wrong with my Vaillant Sonnet 18?

The hot water is working fine but the heating system is not working. Can you tell me why, as it is a very old... [Read more]

Worcester 240 slow pressure rise?

Hi..I have recently replaced two major parts in my Worcester 240: "Diverter Valve".... during the summer 2009... [Read more]

Rayburn Driven Central Heating Problem - Upstairs Cold?

I have a Rayburn Gas CH system with a seperate pump. The cooker / boiler is in the basement kitchen with 3 ra... [Read more]

Potterton Puma 100E - Pressure gauge does not move?

The pressure gauge black dial of my Puma 100E is stuck between 1 and 2 even after I have drained the system an... [Read more]

The pressure gauge black dial does not move?

The pressure gauge black dial of my Puma 100E is stuck between 1 and 2 even after I have drained the system an... [Read more]

I have a vaillant eco tec and the pressure is only 0.8. ?

I have a vaillant eco tec and the pressure is only 0.8 so therefore the heating is working but there is no hot... [Read more]

Grundfos Alpha+ 25-60 pump problem?

the Grundfos pump circulates water in my UF heating system however, I have noticed lately that although my liv... [Read more]

Potterton Promax 24 HE - Heating without hot water problem?

Hi, I have a Potterton Promax 24 HE boiler on a pumped system. Since the start of the recent cold weather I ha... [Read more]

one raditor heating up on hot water side?

hi have a y plan system wich has a mid position diverter valve the problem is that the motor on the valve is s... [Read more]

WHY'S MY VAILLANT BOILER NOT FIRING UP?

My Vaillant boiler isn't firing up when heating is turned on or when hot water taps are turned on. All the se... [Read more]

Pressure dropping on worcester 241 RSF boiler?

Hi i hope someone can help me, the pressure has been dropping on our boiler and has noe gotten to the point wh... [Read more]

Too much preassure in Bosch boiler?

I have the problem with my central heating displaying 3 bar preasure, when I turn a tap on in the house (hot o... [Read more]

Boiler firing up when not on cycle?

I have what looks like a fairly old-fashioned heating system. There is a gas back boiler behind the fire in th... [Read more]

stuck with my Ariston boiler and its getting colder by the day?

Hello I have an Ariston A/27 MFF1. I have just tried the heater first time this year and found that it cuts ou... [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]

Ferroli F30 water pressure problems?

I have a Ferroli F30 Cobi Boiler that has been working fine throughout the summer providing hot water. I have ... [Read more]

HALSTEAD QUATTRO BOILER - COMBINATION BOILER - PROBLEMS?

Hi - I am having troubles with my boiler - where the hot water would come on automatically when a hot water ta... [Read more]

Ariston Combi boiler central heating problem?

Hello I have an Ariston A/27 MFF1. I have just tried the heater first time this year and found that it cuts ou... [Read more]

Potterton Profile 60E boiler keeps tripping out?

My Potterton 60E boiler will run for about 10 minutes then trip out, once it has cooled a little I can reset i... [Read more]

THE WORKINGS OF A PUMPED C/H SYSTEM AND AGRAVITY FED H/W?

I have an Ideal WLX RS50 Boiler.I recently fitted a new 2 port zone valve and pump in the c/h .All operating o... [Read more]