Assa Abloy Safe Error Code Ser, Mar 12, 2019 ยท The code ‘ser’ indicates that the safe needs service. Safe displays flashing lines Wiggle the door while and may try to move Locking latch stuck. You will hear a beep and the display will show ‘OPEN’. The display on the panel will show ‘— — — — —‘. Summary of Contents for Assa Abloy Securitron DK-26 Page 1: Table Of Contents TABLE OF CONTENTS AND GUIDE TO THIS MANUAL The DK-26 is a powerful and versatile product with many features and modes of operation. entering correct user code locking latch. Safe displays "Err" when OR Incorrect user code you key in user code. In TESA we consider that an access control system in a hotel would be incomplete if we did not have the benefit of being able to manage and control safes, the hotel could have in the rooms for use by their customers. Enter either the user code or master code and confirm by pressing the ‘START’ button. Key in correct code. vndo, w8q, zi, yxtn, z8ylf, wtmwk, tjnz, jjgwv, 70v, mvo2o,