- Press the Down arrow 4 times until the display shows "System Programming".
- Press OK / Enter.
- Enter the 4-digit master code and press OK.
- The screen should display "Access Codes". Press OK / Enter again.
- Use Up / Down arrows to select the user you want to delete.
- Press OK / Enter.
- Press Disarm.
- Press Status until the time (Home screen) is displayed.