Wallbox
Wallbox Error 107
EV connector locking failure
Severity
Safe to continue?
No
Technician required?
Usually no
Last verified
September 2026
First safe check
Remove the cable and insert it fully into the vehicle inlet until it latches.
What does Error 107 mean?
The app reports error 107 when the connector locking mechanism has an issue. The documented remedy is to make sure the cable is fully and correctly inserted in the vehicle inlet.
Which models use this code?
Verified for
- Wallbox — Pulsar Plus
Most likely causes
Cable not fully inserted
Manufacturer documentedThe lock cannot engage when the connector is not fully seated.
Safe checks you can perform
- 1
Re-seat the connector
Push the connector in until you feel the latch engage before starting the session.
- 2
Check the vehicle inlet
Look for debris or damage in the vehicle inlet that prevents full insertion.
These steps stay outside the enclosure. Never open high-voltage equipment, bypass safety devices or work on live wiring.
When to stop troubleshooting
Stop and contact a qualified technician if the fault returns immediately, the device smells burnt, visible wiring damage exists, the enclosure is hot to the touch, or the manufacturer specifies professional service.
Can a reset clear this fault?
Documented reset behaviour: no. Use only the manufacturer-approved restart sequence for this device and never bridge or bypass a safety mechanism to clear a fault.
Related symptoms
Related fault codes
Sources
Wallbox Support — App Error Codes
View- Manufacturer
- Wallbox
- Document version
- —
- Section / page
- App error codes
- Verified
- September 2026
Error 107 indicates a locking failure; ensuring the cable is fully inserted is the documented remedy.
Disclaimer
EnergyFaults provides informational troubleshooting guidance. Electrical and high-voltage equipment should only be serviced by qualified professionals where required. Always follow the manufacturer documentation for your exact model.