The back door here has been catching ever since I first opened and closed it 8 years ago... Today, I thought I would
finally see if I could sort it out!
30 seconds later I had spotted holes in the flaps covering the hinge plates attached to the door. I quickly guessed that there would be something inside which could be turned to move the door in or out. It would be a Posidrive or Allen screw...
Shone torch beam into the hole... Allen screw.
I guessed the size... Got it second time.
Which way to adjust? Nope, that made it worse. Other way... Sorted!
Less than 5 minutes to fix something which bugged me for 8 years!
Then it struck me that YouTube is probably full of videos explaining how to do that... Ah, yes!