It needs to spring into the recess in the door strike to keep the door closed.
Troubleshoot door lock strike wont slide.
The door is not meeting the weatherstrip evenly when it closes hitting the top or bottom first.
It did not latch shut.
The lock won t latch at all.
You will need to simply take the lock off the door.
Troubleshooting a stuck door latch.
You can unscrew the door knob and remove both sides then unscrew the latch and pull it out of the door.
See the article adjusting door strike plates for directions on how to fix a poorly aligned strike plate.
It s an easy fix.
Door sagging out of square in frame uneven head margin.
From there try some lubricant silicone spray and graphite powder are my preferred lubricants for locks wd 40 will quickly dry and attract dirt.
Ideally the bolt should rest flush within the strike plate.
Adjustable strike plate not properly aligned.
This creates unnecessary friction as the metal bits of the lock attempt to slide past one another or get out of the way of other moving parts.
This gunk and grime can impede the movement of springs as well.
The best way to lubricate any lock is to disassemble it and use an aerosol lubricant to flush away grime and coat the moving parts of the lock.
The cardboard should be exactly the same size as the strike plate.
Unscrew the strike plate and reposition it.
And if it still doesn t work it s probably time to go to the store to pickup a new doorknob.
In addition to cleaning and lubricating sliding door tracks you want to lubricate the door lock.
Place the cardboard behind the strike plate.
Slide the door strike in the opening making sure the back of the strike slides into the small.
This sliding glass door lock was not working.
The thicker the cardboard the harder it may be to cut but it could save you from having to use several pieces while packing it out.
Apply a lubricant to both upper and lower tracks to keep the door hardware clean and operating freely.
The locks strike plate has to be adjusted so that it lines up properly with the corresponding latch or door lock bolt.
If you are operating the lock on ac instead of dc or on half wave rectified dc transformer single diode the lock won t hold.
Step 3 place the cardboard.
Line up the back of the replacement door strike with the narrow opening in the body of the dishwasher.
Try to open the door while it is shut.
Place the top screw in and tighten it slightly.
Realign adjustable strike plate.
For some door locks you might need to file off sections of the strike plate for it to fit properly.
To correct the problem try loosening the strike mounting screw to see if the lock then holds properly.
A door that is sagging may cause the door strike to hit the strike plate to low not allowing it to spring into place.
Realign reshim readjust lockside jamb so door meets weatherstrip evenly from top to bottom.
