IBM Application System/400 Service Information page 71

A9xx, 89xx, e9xx
(A9xx, B9xx, C9xx) OS/400 Reference Codes
All A9xx, B9xx, and C9xx system reference codes and their associated unit reference codes provide infor-
mation about the user (customer) OS/400 operating system program.
The service representative should have the user see the Operator's Guide for the descriptions and actions
indicated by these reference codes. For additional help, the user should dial IBM Software Support.
A brief description of some of these codes can be found in the Service Functions User's Guide (see "IPL
Status SRC Sequence" under "Reference Information").
A complete description and definition of these codes are found in the Diagnostic Aids - Volume 1 manual
under OS/400 Unit Reference Codes. This manual is used by the software support representatives.
Chapter 2. Unit Reference Codes
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