Troubleshooting
41
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Code
Description
Solution
B704
Power Terminal temperature level is higher
than the limit
Contact service center
B754
Battery power supply relay operation fault
Contact service center
B756
Reset count error
Contact service center
B758
BIC AD reference voltage error
Contact service center
B759
Cell sensor wire connection error
Contact service center
B760
Temperature sensor error
Contact service center
B761
Current sensor error
Contact service center
B764
Unit high voltage sensor error
Contact service center
B765
Circuit breaker switch is open
Contact service center
B766
Fault checking operation error
Contact service center
B767
Battery pack count error
Contact service center
B768
MCU AD conversion error
Contact service center
B769
Cell temperature AD conversion error
Contact service center
B770
Cell voltage AD conversion
Contact service center
B771
MCU AD reference voltage error
Contact service center
y
Firmware version, Error codes, and Fault conditions can be accessed on the display. They can also be
accessed from the server.
Contact
If you have any technical problems or questions, contact the installation company or LGEUS.
1. Installation Company Address :
2. LG Electronics ESS Service
ATTN: Electro-Tech Services, Inc. 19481 SAN JOSE AVE. CITY OF INDUSTRY CA 91748
(833) 940-5010