Modulex EXT Commercial Series Boilers User Manual
CHAPTER 7: Troubleshooting
Page
110
of
144
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0095_0H
09/15/2017
Phone: 800-526-0288
GF-139
In order to derive the fault message from the code displayed in the E8 Controller display, use
Table 7-1
below to determine the working fault 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 fault table to reference from the fourth column.
TABLE 7-1: Determining the “Error Code” Reading from the E8 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”.