Instruction manual
Error Codes
9-13
Maintenance and Troubleshooting
7804 INVALID SANITY 
RESPONSE: 
Sanity test received invalid 
responses; applies only to 
modules with extension 
jacks.
or 
MERLIN Messaging System 
(M1000) software was 
upgraded. 
Reset module. If problem 
persists, check module.
If the M1000 software was 
upgraded, no action is required.
00DE  MERLIN Messaging System 
(M1000) software was 
upgraded. 
If the M1000 software was 
upgraded, no action is required. 
7801 The MERLIN Messaging 
System (M1000) reset at 
2:00 am or the MERLIN 
Messaging System software 
was upgraded.
If the M1000 software was 
upgraded, no action is required.
Table 9-2.  Error Code Descriptions—Continued 
Error 
Code
Description Action










