ABL No Power / Dead Unit

ABL charger’s front LEDs are off and the unit appears completely dead; no response when vehicle is plugged in.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Tripped upstream breaker or RCD, Blown internal fuse on ABL power board, Loose supply wiring at input terminals, Failed auxiliary power supply on main board

How to Fix / Troubleshooting

Safety: Treat the circuit as live until proven otherwise.

Steps:

  • Check the upstream breaker and RCD; reset if tripped and observe if they trip again.
  • Verify that other devices on the same circuit (if any) have power.
  • With power OFF, open the ABL charger and check that the supply conductors are firmly connected and that any internal fuses are intact (replace only with identical rated fuses).
  • If supply and fuses are good but the unit remains dead, the internal auxiliary power supply or main control board is likely defective and must be replaced by a technician.
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Repair Difficulty

Hard 4/5

Required Part

ABL auxiliary power supply module
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