What does “FAIL SYSTEM” mean on RKI Instruments Security Sensors display?
- JJustin ChenSep 12, 2025
If your RKI Instruments Security Sensors display indicates “FAIL SYSTEM” during startup along with an error code, a circuit fault has likely occurred on one of the PCBs. If the error code is 031, indicating a FLASH memory failure, press and release the RESET SILENCE button to continue to measuring mode, but note that there will be no datalogging function. If the error code is anything else, the instrument cannot be used.