ABL Grid Disturbance Sensitivity / Brownout Behavior

ABL charger’s front LEDs blink in an undocumented pattern and the unit occasionally reboots, especially during storms or grid disturbances.

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.

Possible Causes

Frequent voltage dips or surges on supply, Inadequate surge protection upstream, Sensitive low‑voltage power supply design, Loose neutral connection

Steps:

Have an electrician measure supply quality (voltage stability, presence of surges) over time.
Install appropriate surge protection devices (SPD) upstream if not already present.
Verify tightness of neutral and earth connections in the distribution board and inside the ABL charger.
If possible, configure the charger to a slightly lower maximum current to reduce stress during marginal supply conditions.

Persistent instability may require replacement of the auxiliary power supply or main control board.

Medium 3/5

ABL auxiliary power supply module

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