Recent content by AndrewHeatingServices

its certainly worth a try, presuming you have eough room. It can sometimes draw in air if the pump is very close to the cold feed/vent.

try turning pump speed down? sorry if its already been mentioned, cheers. Andy.

Hi, as Andy said, check valves are open, if not open them up. Take off the thermostatic valve head and check whether the pin in the middle is stuck in, test using pliers (dont pull pin right out). It could also be that the rad is air locked or has sedement build up, try turning off all the other...

Hi there, for a repair guy, its not too difficult, would probably take about an hour if ll goes well. Pricewise, the valve is a standard giannoni div valve costing around £60-£70 and labour 1-2 hours between £50-£70 per hour. so average guy may charge anything from £110 to £220. British gas...