
PR1: 11/30/12 Page 106 of 112
Modulex E8 Controller and BCM
Operations and Maintenance Manual
AERCO International, Inc.
100 Oritani Dr.
Blauvelt, NY 10913
Ph: 800-526- 0288
10.2.2 BCM (Boiler Communications Module) Fault Codes
The table below shows how to interpret the displayed fault code, while Table 10-3, on the next
page, shows a description of the fault and troubleshooting tips associated with the BCM.
NOTE
In order to properly interpret a Fault Code for Modulex
Boilers, as displayed in the BCM (Boiler Communication
Module), it is necessary to refer to the table below in order
to determine the actual Fault Code that will be looked up in
the Fault Code table 10-3 on the following pages.
FAULT CODE FORMULA
BMM #0 Fault Displayed Number = BMM Fault Code in Table 10-3
BMM #1 Fault Subtract 256 from Displayed Number = BMM Fault Code in Table 10-3
BMM #2 Fault Subtract 512 from Displayed Number = BMM Fault Code in Table 10-3
BMM #3 Fault Subtract 768 from Displayed Number = BMM Fault Code in Table 10-3
BMM #4 Fault Subtract 1024 from Displayed Number = BMM Fault Code in Table 10-3
BMM #5 Fault Subtract 1280 from Displayed Number = BMM Fault Code in Table 10-3
BMM #6 Fault Subtract 1536 from Displayed Number = BMM Fault Code in Table 10-3
BMM #7 Fault Subtract 1792 from Displayed Number = BMM Fault Code in Table 10-3
2048 and
Invalid Codes None
BCM Fault Subtract 65280 from Displayed Number = BCM Fault Code in Table 10-3
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