ABL wallbox displays E19; charging is blocked and the unit may indicate a door or cover interlock error (on models with service switches).

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.

Possible Causes

Faulty cover interlock switch, Misaligned cover not actuating the switch, Broken wiring from interlock to main control board, Incorrectly fitted service key or maintenance switch

How to Fix / Troubleshooting

Steps:

Ensure the front cover is properly closed and all screws are tightened so that the interlock can engage.
Open the unit with power OFF and locate the interlock switch. Check for mechanical damage or misalignment.
Verify that the actuator on the cover correctly presses the switch when closed.
Check the wiring from the switch to the main control board for continuity.

Repair: Replace the defective interlock switch or adjust its position. If the input on the main control board does not respond to a known‑good switch, the board may need replacement.

Repair Difficulty

Medium 3/5

Required Part

ABL cover interlock switch

Check Price on Amazon

We may earn a commission from links on this page.