heating/hot water

[harrison_633]

Hi can anybody HELP. I have a problem with air getting into my system,but cannot find any leaks.It got so bad yesterday the boiler cutout
cannot find any leaks.it got so bad yesterday the boiler cut out. It seems to be worse when the kids have a bath ,or the heating is on. any ideas would be greatly appreciated many thanks

 

[gas4you]

We need to know what boiler and type of system you have first.

 

[harrison_633]

Thank for your reply.Its a potterton prima 80f boiler, the system has a 3port mid posion valve.hope this helps.thank you

 

[gas4you]

Check the small f&e tank in loft is full of water first.