Many problems with AD-series locks can be resolved by performing a Factory Default Reset (FDR). This process will clear the memory and any stored configurations, re-enabling default...
To perform an FDR on an AD-series lock:
1. Remove the inside top cover of the lock. This will expose the main board and activate the tamper switch.
2. &...
Note: An FDR cannot be performed if an HHD is plugged into the lock.
This information can be found at the following URL's:
AD200 http://us.allegion.com/content/dam/allegion-us-2/web-documents-2/UserGuide/Schlage_AD-200_Offline_Lock_User_Guide_-_English_102107.pdf