E13
Blink Internal Self-Test / Watchdog Failure

Blink EV charger shows E13 and may indicate an internal self-test failure at startup.

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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

Corrupted firmware, Failing main control board microcontroller, Power supply instability on low-voltage rails, Loose internal harness connections

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker before opening the charger.

Steps to troubleshoot:

  • Power cycle: Turn the breaker OFF for at least 5 minutes to fully discharge internal capacitors, then restore power and observe if E13 clears.
  • Check low-voltage harnesses: With power OFF, open the Blink unit and gently reseat all low-voltage connectors on the main control board and any daughter boards.
  • Inspect for damage: Look for bulging capacitors, burn marks, or corrosion on the control board.
  • Firmware recovery: If supported, attempt a firmware reload or update via Blink’s service interface or network connection, following official instructions.

If E13 persists after reseating connectors and firmware update, the main control board is likely defective and should be replaced by a qualified technician.

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Repair Difficulty

Hard 4/5

Required Part

Blink Main Control Board
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