How To Re-Pressurise Your Worcester Greenstar Boiler Using The Key - Pro-Tect Heating & Plumbing Ltd 

I think he means turn the little white thing anti-clockwise. All these things have to do is heat tap water & pump hot water around your central heating system. You'd think they were part of a nuclear reactor or the Space shuttle

My key won’t go up in any position

There is no white key