ok, I bled my rads today and the pressure on the boiler went low. I went to top up the boiler via the filling loop but nothing happened. Eventually the knob on the filling loop broke off and the pressure on my boiler is below.5 as it is a combi, can I still use the hot water safely until I can get it fixed?

sandra, October 2013

If it works then yes.the whole system is set up to fail safe so in other words it will no work if there is an issue.ps if plastic top has broken off filling loop use an open ended spanner to open valve

A1, October 2013