Firstly for a whitco mk ii tasman lockthe lock needs to be in the locked position.
Remove screen door lock without key.
Open the door and look for the latch plate along the door s edge.
That is unless you have a master key system in place.
This is a quick video to show you how to replace a sliding screen door lock.
Remove this screw using a drill or screwdriver.
Unscrew this plate and remove the latch from the door if possible.
To remove a sliding screen door find the screws at the bottom corners and unscrew them with a screwdriver.
So in order to unlock a door without a key you will have to imitate the action of the key itself.
Then use your screwdriver to unscrew the head stop located at the top of the door frame.
Pull the door up until you can see the bottom wheels on either side.
How to remove a door lock without a key.
The basic pin tumbler lock should work ideally with only one key.
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