Hi All
The new studio was fitted with a nice new white UPVC door - standard
'front door' I guess.

The locking mechanism used to engage by closing the door and then
lifting the handle - which shot home three or four bolts on the side
of the door.

Recently there's been a procession of plumbers & etc in & out of this
door.
Now I find that the door mechanism seems to be broken !

The normal spring-loaded door catch seems to be stuck in the retracted
position, and you can't lift the door handle in order to operate the
locking bolts. A quick investigate allowed me to remove the lock
barrel - but this didn't seem to make any difference...

Further investigation seems to involve dismantling the bolt mechanism
recessed in the opening side of the door. Any clues as to where the
problem may lie - or reassurances that I'm not going to end up
releasing a bag full of 'ping****its'...?

Thanks in advance
Adrian