I have bled my Volkera linea 24 combli from 3.45 bar to 1.0 bar from cold, i fired up again and when on hot water and heating it goes past 3.5 and starts to overflow, can anybody help.

Paul Powell, October 2009

No problem, if you can find the expansion vessel (usually a red tank) and also the car type air valve near the top.....check its pressure with a car tyre gauge - if water spurts out though, go no further but replace it. As you pump air in (using a bike or car tyre pump or similar) it will displace some water, and to get an accurate pressure reading this volume of water has to be bled off at a radiator, or at the pipe leading from the expansion vessel - if its visible. Anyway, the vessel needs an air pressure of 10 psi to work properly, and thats how much air you pump in. Its my guess its rather empty of air!

John, October 2009

John

Is it something that i can do easily.

Paul, October 2009

The expansion vessel inside the boiler needs pressurising...it should have 10 psi of air inside it. Water needs to escape though if you are doing this. If you press the tyre valve on the top of the thing and water comes out; its goosed.

John, October 2009