I have always used the fob to open it, so I think the lock may be seized, if you press the drivers door pin down or up it doesn't alter the other locks
I have a 1995 Diesel Omega Estate, which has developed a central locking problem, the interior locks are showing half way open/closed and the drivers door can't be opened using the key, but you can open the passenger side with the key and the drivers door can be unlocked from the inside, the immoboliser can be un-set using the the key fob - any ideas what could be causing the problem??