Master Code P1 User 01 (Master not changeable by user in older Vista-20’s)
Master Code P2 User 02 (User Codes in Partition 2 only changed by Partition 2 Master Code)
Secondary Codes User 03 to 14
Babysitter Code User 15 (Disarms system only if Armed by Babysitter Code)
Hostage Code User 16

Program Master Installer Code + 8 + (01 for Partition 1, 02 for Partition 2) + New Master Code
Change Master Master Code + 8 + 02 + New Master Code twice (Keypad should beep)
(If this does not work panel is older version that must be downloaded)

Add Code Master Code + 8 + User (03 to 14) + New Code (Keypad should beep)
Erase Code Master Code + 8 + User (03 to 14) wait 5 seconds (Keypad should beep)
You cannot pause more than 2 seconds while entering below commands or it won’t work