Upvc door lock

[Ashley Burton]

Leave her outside?

 

[stuvy]

If its a pig to operate when open you might get away with removing and lubrication but something is probably broken in the latch box so needs replacing...

it might just be the barrel lock if the door opens and closes ok. failing that more than likely the gearbox wants changing at real worst change the whole mechanism about 120 quid ish. simple enough to get out and do just remove the one lock screw pull it out then unscrew the rest and remove

I’m off tomorrow so will give it a go

 

[brightspark]

I’m off tomorrow so will give it a go

to get the barrel out take the one screw out holding it in . put the key in and slightly turn it and the barrel should just pull out easily

 

[RichardM]

I replaced the gearbox on our front door, started to become a right PITA to lock it. Loads better after.
This is what yours should look like:
https://gbdiystore.com/yale-ys170-replacement-gear-box-door-lock-centre-case-45mm-backset

 

[brightspark]

heres the barrel bit How to Change a Door Lock to a Yale Anti-Snap Euro Profile Cylinder lock | Homebase - YouTube and i didnt learn how to fix em of here my mate does em on rented flats all the time and showed me