Potterton Performa 30 HE

[Aug]

Hi, I wonder if one of you boiler experts can give me some advice on a fault my boiler has developed.

The pressure goes up by appx 2 Bars when the Hot water is running, which means, i have to set the initial pressure at below the recommended 1.5 Bars, so as not exceed pressure max when hot water running.

I'm pretty sure the Hot water path is also topping up the Radiator side of the boiler as well, but not from the cold feed.

Any ideas would be much apreciated.

Regards

TID

 

[twgas]

expansion vessel, try the FAQs.