upvc door hard to lock when closed - fine when locked if door open

[janz70]

Hi all, we have a upvc front door that is hard to lock. when the handle is turned up to engage to hooks and bolts it takes a few goes and a bit of force before I can then turn the key in the lock. when the door is open and the handle is turned up all works ok and door key will tun no problem.

Looking at the door hooks and vertical moving bolts (cams?) the 2nd from top bolt appears to be slightly lower in position than the others and when the door is offered up to the frame the bolt just to say skims into the metal recessed plate.

Is there anyway to increase the height of this bolt as the metal recessed plate that is fits into has no up/down adjustment only in/out of frame.

Thanks in advance

 

[KenGMac]

Carefully use a small file on the plate???

Ken.

 

[janz70]

I tried adjusting the cam roller but it was already on the max height - eventually had to adjust the main hinges - took the door up a few mm in height and locks perfectly now with no force.