MAINTENANCE
ERROR MESSAGES
Error messages, along with the alarm indicators, are the most likely indicators that an error has occurred in the system. When a maintenance object fails periodic testing, the system automatically generates an error record. The error record (log) is accessible through the SAT. The following table lists and describes error messages that can be displayed on the SAT. The table also includes possible solutions for some of the errors that are encountered.
If the recommended solution includes CP replacement and, if repeated replacement of hardware does not fix problems or similar problems seem to be happening at many locations, suspect software problems. Contact the Local FAST if this problem persists.
When the procedure indicates CP replacement, inspect each CP for the following:
●Bent pins
●Damaged components (ICs, resistors, etc.)
●Correct firmware vintage (call local FAST for assistance).
After the inspection is complete, reseat the circuit pack and if the problem persists, replace the circuit pack. When returning a defective board to MLO, include the associated Error Log entries on the trouble ticket.
