Watts Aerco Modulex MLX EXT 1530 - Page 114

Modulex EXT Commercial Series Boilers User Manual
CHAPTER 7: Troubleshooting
Page 114 of 144 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0095_0H
09/15/2017 Phone: 800-526-0288 GF-139
TABLE 7-2: E8 Controller Fault Codes (Continued)
CODE DESCRIPTION EFFECT CORRECTION RESET
E 200
Communication Error HS1
Communications issue with BMM
0. Check all eBUS addresses
E 201
Communication Error HS1
Communications issue with BMM
1. Check all eBUS addresses
E 202
Communication Error HS1
Communications issue with BMM
2. Check all eBUS addresses
E 203
Communication Error HS1
Communications issue with BMM
3. Check all eBUS addresses
E 204
Communication Error HS1
Communications issue with BMM
4. Check all eBUS addresses
E 205
Communication Error HS1
Communications issue with BMM
5. Check all eBUS addresses
E 206
Communication Error HS1
Communications issue with BMM
6. Check all eBUS addresses
E 207
Communication Error HS1
Communications issue with BMM
7. Check all eBUS addresses
Internal Fault
E 81
E8: EEPROM fault. The
invalid value has been
replaced by the standard
value.