Glow-worm 30HXI reset?

Thanks to this forum I found the red reset button. I tried to press down on the button but it didnt move and didn't want to break it so I left it oin the end.


My problems started when I cleaned the magnaclean device. It seems as though there is a slow leak on the isolation valve of the magna clean. The boiler now refuses to so any sign of life. Not even a fault light. Could it be problem with air or that the leak is causing a drop in pressure and resulting in boiler not firing up?

regrds