- 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.
 
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