This question is related to hinges on kitchen unit doors. The door won't shut because it is catching on another unit door. I think it might be to do with adjusting the hinges of the door, but how do i do it
If the part of the hinge that is attached to the cupboard has a cover (often with the manufacturers name embossed on it) you need to remove this cover first by prising it off with a screwdriver to get access to the adjusting screw(s).
Firstly make sure the plate that is attached to cabinet is secure. If it is loose this will make the door drop. If it is nice and secure, hinge adjustment is easy. There are many different brands of kitchen hinges, so i will generalise. On the long arm of the hinge you will see two screws, locate the screw closest to the door and turn it half a turn clockwise. Repeat on the other hinge. See if the door closes properly and repeat if necessary. If the door does not close properly even if it appears not to be touching door next to it, you will need to adjust the screw on the hinge arm that is furtherst away from the door. Usually this will invole loosening it two turns, pull the door torwards you and then retighten that screw. If these actions fail to fix the problem, you hinges are too worn. B&Q should have replacement hinges that will be a direct swap and their factory settings will probably be pretty good.