They are often used in higher end doors because steel mortise locks are more secure than the cast aluminum alloy versions used in many patio doors.
How to fix the patio door lock.
If it won t lock open the door.
It did not latch shut.
Shut the door and try to lock it.
Locks can essentially be frozen in two different ways.
Turn the patio door knob up and down to inspect it for foreign objects dirt or rust.
It could be that the external section of the lock is frozen up which prevents you from even gaining access to the keyway.
Remove these two screws and gently pull out the latch mechanism and its cartridge.
If you live in a windy area place a heavy object against the door or use tape to keep it from opening up after you ve removed the lock.
In addition to cleaning and lubricating sliding door tracks you want to lubricate the door lock.
Spray lubricant onto the entire knob and lock assembly for better operation.
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.
Two screws on the end of the door secure the latch.
Donations appreciated click in upper right corner info circle.
Apply a lubricant to both upper and lower tracks to keep the door hardware clean and operating freely.
Take an allen wrench and loosen the set screw under one of the handles.
The picture above shows an 070001 model lock.
Make adjustments to the latch adjuster screw as necessary until the latch catches properly and locks the patio door.
Sliding glass door locks such as the steel mortise style locks shown on this page are used in wood vinyl and aluminum patio doors.
Step 4 finding a replacement.
If it is loose or has slipped out of the mortise place it back in the mortise and tighten the screws with a phillips screwdriver.
Have one person go to the other side of the door and hold the handle.
This sliding glass door lock was not working.
Try to lock the patio door.
Clean the door knob and lock with a degreaser and a wire brush.
It s an easy fix.
The lock is built into the handle.
The door originally came with a temporary handle which is a square rod that is bent 90 degrees.
How to fix a door lock that is jammed due to freezing comes down to the type of freezing.