If the weather is very cold don t discount the possibility that the lock might have frozen.
How to fix a broken patio door lock.
Turn the patio door knob up and down to inspect it for foreign objects dirt or rust.
Try to lock the patio door.
Step 4 finding a replacement.
Spray graphite into a lock for lubrication to see if the lock can be fixed before starting on a costly replacement.
The best way to thaw out a lock is to insert a heated key into it.
Giving an insight into what to do with a faulty upvc door locking mechanism or patio door locking strip.
Clean the door knob and lock with a degreaser and a wire brush.
If the lock is from after 1960 it is likely a standardized size and replacement parts should be readily available.
Provide all the necessary tools and equipment needed to complete the job safely and without further damaging the door.
Two screws on the end of the door secure the latch.
Using gloves dry the key and insert it slowly into the lock.
The newer versions have the same handle on both sides.
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.
It s an easy fix.
These are the easiest to replace because most of the time you just have to pull out 2 screws remove the old handleset and bolt on a new one.
A professional tradesman will after all be able to.
The picture above shows an 070001 model lock.
Warm the key by placing it on top of a radiator or in a bowl of hot water.
Remove these two screws and gently pull out the latch mechanism and its cartridge.
Donations appreciated click in upper right corner info circle.
This sliding glass door lock was not working.
If the broken lock is a lever lock a common lock used for doors which can have multiple levels of levers for additional security use the below steps to fix it yourself.
The lock is built into the handle.