BYD Battery-Box Premium LVL, Service Manuallines

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CONTENT 2
1. GENERAL STEPS 3
2. ERROR ANALYSIS 4
2.1 BMU shows no reaction / No LED 4
2.2 Communication problem with Inverter 5
2.3 Problem with the Firmware Update / App Configuration 6
2.4 BMU/BMS LED event code (EC) 7
2.5 Be Connect Plus (BCP) 9
2.6 Voltage measurement and undervoltage 10
3. SERVICE TASKS 12
3.1 BMU Replacement 12
3.2 BMS Replacement 12
3.3 BIC Replacement 12
SERVICE CHECKLIST AND CONTACT INFORMATION 13
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