sorry about info i dont no if it is a vented "h" system , boiler is a baxi bermuda 552 and it does flow into the tank as soon as the pump starts it does sound like a blockage, i had some radiators changed downstairs last year what do i need to do to unblock it please
Hi
I have a baxi backboiler and as soon as it comes on water flows through the header tank, the water soon gets warmer and warmer,causing a lot of dampness in the cupboard,could the problem be a faulty honeywell control valve.