Yale Assure Lock YRD426 Installation And Programming Instructions page 17

Resetting Lock to Factory Default
When lock is reset to factory defaults all user codes (including the
Master
to original default settings (see below).
1. Remove the battery cover and batteries.
2. Remove the interior escutcheon to access the reset button.
3. The reset button (see image at right) is located beside the PCB
cable connector.
4. While pressing the reset button (minimum of 3 seconds) reinstall
batteries. Release reset button.
5. Replace battery cover.
Upon reset, Master
must be performed prior to any other programming of the lock.
Interior Escutcheon
PIN code*) are deleted and all programming features are reset
PIN Code creation is the only option available and
P/N YRL TSINSTL FUL
17
- - Rev F