Charger shows E20; the unit may not detect that the connector is holstered or may not lock/unlock properly (if equipped with a holster sensor).

Safety first: Turn OFF the breaker before adjusting the holster or sensor hardware.

Steps to try:

• Clean holster: Remove dirt, cobwebs, or debris from the holster and sensor area.
• Check alignment: Ensure the holster bracket is firmly mounted and aligned so that the connector seats fully.
• Test behavior: With power ON, insert and remove the connector from the holster and observe whether the charger status changes. If E20 remains, the sensor may be faulty.

When to call a technician: A technician can test the holster sensor and replace it or its wiring harness if defective.