Recent content by Martin Byford-Rew

Not sure how having pictures will assist but please see below. Thank you for your assistance. Just to be clear, water will flow through the filling loop when tested by disconnecting from the boiler in end and turning on at the water mains flow end.

Thanks, tried that but still the same. No water flowing into the boiler through the filling loop.

This is an odd one. Our Vaillant EcoTec Plus 831 will not fill when using the filling loop. It used to fill fine using it but now it does not. What is odd is that there is no sound of filling at all. It makes no effort. Water is flowing through the filling loop as I’ve disconnected it and...