use of incorrect batteries Remember to use new alkaline batteries from reputable manufacturers (Duracell, Energizer). 9V batteries are less popular and can sit on shop shelves for long periods. Pay attention to the expiry date of the battery and its manufacturer. We recommend using only Duracell or Energizer alkaline batteries. 2. forcing files into the safe This can lead to a blockage, with items inside the safe pushing against the door. 3. Scattered items inside the safe will block the bolts. This type of malfunction occurs when there are loose coins, paper clips, files etc. inside the safe. Their position between the bolts and the floor of the safe can lead to locking of the locking system. 4. Errors due to incorrect way of changing the code The code should always be changed with the safe door open. The new code must be checked several times with the door open. 5. forgetting the code or losing the key This can result in the need to open the safe mechanically in an emergency.