Hi there,
I have an F.22 code on my boiler, (A Vallian Ecotec) and a pressure of 0.6. (I know it's supposed to switch off at 0.5, but here we are!)
I'm not sure where my filling loop is. All the pics I've found online show it as part of the boiler, but mine has no valves there.
I have a TF1...