What are the three different “Reset” levels available in the E-Plex 30xx/50xx?

Question

What are the three different “Reset” levels available in the E-Plex 30xx/50xx?

Answer

There are three different “Reset” levels available in the E-Plex 2000. 
Code 099# will reset the lock to the factory default settings except for the access code length (Master and Manager User codes are retained if already programmed) 
Code 299# will delete all access and service user codes (Master and Manager users are retained) 
Hard Reset will return the lock to factory mode including deleting all codes, putting the lock back to factory default values (4 digit access code length) and making the master code 1-2-3-4-5-6-7-8. A hard reset is performed as follows.