Hi, I wonder if there is a simple solution to the following problem:

The Ferroli Optima 701 loses pressure when the heating is turned off for any length of time (eg. overnight, or during the day), or when hot water isn't being drawn. Usually the pressure drops off entirely to 0 bar. Sometimes, but not always, there is also an accumulation of water under the boiler.

Previously it worked fine if water was let into the system. However, this morning when I tried to top the water up, it started leaking a lot. I've taken the cover off, and the water seems to be coming out of the top of the automatic air vent unit.

Can anyone advise, please?

thanks
Jon

Jon, January 2008

Its definately a faulty automatic air vent, quite a common thing unfortunately. Its probably been leaking water slightly for a long time but the immediate heat in the boiler area has evaporated it away, you've spotted it now because its leaking badly now.

John ( Wirral ), August 2008