REDARC BCDC in-vehicle chargers use LEDs to indicate charging status and faults.
To resolve issues, check wiring and grounding, measure voltages directly at the input and output, and inspect fuses for resistance or poor contact.
REDARC recommends seeking the support of a qualified auto electrician or technician.
Important
For your safety, REDARC recommends installation by a qualified auto electrician or technician. Our trusted REDNetwork is made up of professional auto electrical businesses certified by REDARC to install the complete of REDARC solutions. Find Your Local Installer
This information is applicable to the following products:
- BCDC Classic (BCDC1225D, BCDC1240D, BCDC1250D)
How does this fault appear?
The Charge Profile LED and Charge Status LEDs on your BCDC provide information about charging status and faults. Depending on what you see, you can identify whether the unit is charging normally, in standby, or if there is a connection issue.
BCDC LED indications and meanings
No LEDs are on
The BCDC is not connected to the start battery (or solar) and auxiliary battery, or there is no common ground between the input and the unit.
Action: Check voltages at the batteries, confirm correct wiring, and ensure proper ground connections. Poor fuses or faulty connections to ground are common causes.
Only the Charge Profile LED is flashing
The BCDC is in standby mode and not charging. This occurs when input or output voltages are not detected.
Normal condition: This can happen if no charging source is available, or if the auxiliary battery is below 4V.
Action: Verify required input voltages at the BCDC wires before any fuses or connectors. Inspect wiring and fuses for resistance or poor connections.
Charge Profile LED is solid and one of the stage LEDs is flashing
This is normal. The BCDC is charging, and the LEDs indicate the current charge stage and available sources.
Action: No fault present. Unit is operating correctly.
How to troubleshoot LED issues
Important
In this article we explain the need for testing to determine the cause of the issue. Testing may involve changes to the installation or wiring. For your safety and accuracy, REDARC recommends engaging a REDNetwork member or a suitably qualified auto electrician - Find Your Local Installer
Check wiring connections — confirm start battery, auxiliary battery, and ground are correctly connected.
Measure voltages directly at the BCDC input and output to verify supply.
Inspect fuses and connections for high resistance or poor contact.
Retest the unit after rectifying any faults.
If issues continue, contact REDARC Technical Support or visit a REDNetwork Installer.