The button that would normally release the unit and enable it to be removed is slack so evidently the mechanism is broken. I have tried to 'persuade' the unit away with a fairly liberal amount of force but I think I will damage something if try any harder.
As I have never removed the load cover so I don't know how the mechanism that keeps the unit in place actually works otherwise I might be able to slide a tool in at the appropriate angle somewhere to release a catch perhaps. Basically I don't know how to tackle a fix.
Any help would be much appreciated
