The fix a short term fix is to move the strike plate to align better with the stuck door latch.
How to fix french door lock.
Open the door at the side where the jamb will be shimmed and stabilize it with a doorstop.
If this is the case you may need to remove the entire doors so you can renew the holes.
Spray the inside mechanics of the french door knob thoroughly using canned air duster to dislodge any dust or other large buildup.
Step 3 douse the mechanics of the lock itself with spray lubricant.
Turn the lock back and forth as you spray so that the lubricant can get deeper into the mechanics and allow the lock to slide free.
The fix will depend on what locking mechanism you ve chosen.
If the french doors have dropped due to loose screws in the hinges attempt to tighten them before you test the doors again.
Once you fix french door alignment by screwing all the hinges tight to the door frame and securing the french door jam to the rough in door opening buck plate and finally we fix french door top.
There is no quick fix for a french door lock not working.
Use a wood chisel and hammer to carefully remove the vertical piece of casing along the side of the.
From there you can either widen the hole both of the wood and metal or you can unscrew the strike and re secure it in the proper position.
Open the operable door using the knob or lever handle.
The fix will depend on what locking mechanism you ve chosen.
By shutting your door you can mark the point on the door frame that latch is coming in contact with.