AERCO Modulex EXT 321 - 1123 - Manual (Page 114)

MODULEX EXT 321, 481, 641, 802, 962, 1123 BOILERS
Installation, Operation & Maintenance Manual
In order to derive the error message from the code displayed in the E8 Controller display, use
Table 6-1 below to determine the working error code. To use the table, find the displayed
number in the first column, identify the affected module from the second column, apply the
formula from the third column, and identify the Error Table to reference from the fourth column.
Table 6-1: Determining the “Error Code” Reading from the E8 Controller Display
Observed Code
Observed
Code
Code to Look Up in Table
Code = 0 N/A No Fault -
Code between 1 and 255 BMM #0 Fault Look up code 6-4
Code between 256 and 511 BMM #1 Fault Subtract 256 from reading 6-4
Code between 512 and 767 BMM #2 Fault Subtract 512 from reading 6-4
Code between 768 and 1023 BMM #3 Fault Subtract 768 from reading 6-4
Code between 1024 and 1279 BMM #4 Fault Subtract 1024 from reading 6-4
Code between 1280 and 1535 BMM #5 Fault Subtract 1280 from reading 6-4
Code between 1536 and 1791 BMM #6 Fault Subtract 1536 from reading 6-4
Code between 1792 and 2047 BMM #7 Fault Subtract 1792 from reading 6-4
Code between 2048 and 65279 N/A Invalid Codes -
Code above 65280 BCM Fault Subtract 65280 from reading 6-3
Example:
Based on the above, a code reading of “261” means the fault occurred on
BMM #1. The fault code is (261 – 256 = ) 5. An Error Code of 5 from the
BMM Fault Codes table means “Flame Loss During Run”.
E8 Controller Fault Codes 6.1.1
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