How can I fix saggy door handle ?

Hi ... it sounds to me that this sagging is cause by wear and tear - at some point the rotation of the door handle is converted into a linear movement. Many common handles have a square shaft which fits into a plate which rotates via a square "hole". It would seem as if this square "hole" is being converted into a "round" hole by share force over the years. Suggest replacement parts are needed.
I suspect that my technology for upvc door handles is not upoto date ... but these comments might be of help.

Nyge
March 2011

Yes, Try oil in the latch, in fact oil all moving parts.

Lee
March 2011