11. Appendix
11.1. LED indications, warnings, alarm and error codes
LEDs
The Lynx Smart BMS is equipped with two LEDs, the Bluetooth LED and the Status LED. These LEDs will indicate the operation
mode and the fault mode in case there is a fault.
Bluetooth LED
Description
Off
No system power or Bluetooth disabled in VictronConnect app. Bluetooth
can be disabled in both, VictronConnect and a GX device, but only
enabled from a GX device.
Blue on
A Bluetooth device is connected to the Lynx Smart BMS
Blue flashing
Bluetooth is active but no device is connected
Blue flashing at 3 seconds interval
The Lynx Smart BMS is in OFF mode but is still accessible over
Bluetooth
Status LED
Description
Off
The Lynx Smart BMS is in OFF mode
Orange on
Initializing or shutdown
Orange blinking
Delayed shutdown due to cooling down the pre-charge circuit
Green on
Running, the contactor is closed
Green blinking
Pre-charging
Green flashing at 3 seconds interval
The Lynx Smart BMS is in Standby mode
Green and red alternating
System in bootloader mode (updating firmware)
Red flashing 1 time every 4 seconds
Warning, see VictronConnect for more information
Red flashing 2 times every 4 seconds
Battery communication error, check battery BMS cables
Red flashing 3 times every 4 seconds
High/low cell voltage or high/low temperature detected
Red flashing 4 times every 4 seconds
High BMS temperature detected
Red flashing 5 times every 4 seconds
Pre-charge time out
Red flashing 6 times every 4 seconds
Pre-charge high current
Red flashing 7 times every 4 seconds
Probably wrong system voltage
Red flashing 8 times every 4 seconds
Contactor current too high
Red flashing 9 times every 4 seconds
Initialization error
Red flashing 10 times every 4 seconds
Safety contactor failure
Red flashing 12 times every 4 seconds
Internal supply error
Red flashing 14 times every 4 seconds
Battery voltage not allowed
Warning, alarm and error codes
Warning, alarm and error codes are also reported via the VictronConnect app or a connected GX device and VRM.
A warning indicates a problem that, if not corrected, will result in a system shutdown, while an alarm indicates the reason for the
system shutdown.
Lynx Smart BMS
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Appendix
