replacing door lock

A home owner from Illinois says:

We have lived in our home for 8 years and the lock on the sliding door to our patio broke. Before spending hundreds to replace it I wanted to try to replace the lock!? Here are the numbers I can make out on the door:

ANSIZ 971. 1984. SG00 1605. 3603

Any chance of replacing the lock?

Thank you for your assistance!

User submitted a photo of their patio glass door lock set.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting, Nancy. I'm not sure if the issue is with your inside mortise lock or handle, but for either event look at our 82-073 or 82-074 handle sets (which one you need would depend on the thickness of your door) and our 82-226 mortise lock. Just make sure the general dimensions match before you make a decision.
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