EV charger repair, servicing and maintenance in Seville, Spain

EV charger repair when your wallbox will not charge

A charger that was working and suddenly stops usually has a simple explanation, but it has to be found methodically, because the fault can be in the unit, in the installation that feeds it, in the settings or in the car. For EV charger repair in Seville we check that whole chain, so you are not left guessing whether to call the manufacturer, the car dealer or an electrician.

The most common faults

• Tripped protection devices. The RCD or the circuit breaker on the charger circuit has tripped. If it happens again, it is not chance: there is leakage or an overload that needs to be found.
• DC detector trips. Almost every quality charger has a 6 mA DC detector (RDC-DD). If it acts, the cause may be a fault in the unit or in the car’s on-board charger.
• Load balancing set up wrongly. If the dynamic load balancing clamp is badly positioned or disconnected, the charger may stay at the minimum or not start at all.
• Lost connection. The charger loses the garage Wi-Fi and stops obeying the app or the schedule. It is very common in communal garages with poor signal.
• Forgotten schedule. An off-peak charging schedule set in the app or the car that prevents charging at other times.
• Damaged cable or connector. Being trodden on, hit by the car or simply used every day wears out the lead and the type 2 connector.
• Power surges. Summer storms in Seville can damage the electronics if the installation has no surge protection.
• Outdated firmware. Some communication faults with new cars are solved by updating the charger software.

How we diagnose the fault

1. We check the fuse board and protection devices on the charger circuit and its earthing (grounding).
2. We test the installation: cable insulation, voltage at the charger and RCD operation.
3. We check the settings: maximum power, load balancing, schedules and connection to the app.
4. We test the unit under real load and, where possible, with your car.
5. We give you the diagnosis and the quote before repairing: new cable or connector, replacement protection devices, a new Wi-Fi repeater or a warranty claim with the manufacturer.

Servicing and maintenance of charging points

Home chargers have no compulsory maintenance under the regulations, but they do benefit from some care:

• Every month: press the test button on the charger RCD.
• When an update is released: install the new firmware from the app.
• Once a year: a check of connections with a thermal imaging camera, a test of the RCD and the surge protector, cleaning, and inspection of the cable and connector.

Installations with an engineering project, above 50 kW, and garages with more than 25 spaces also have a periodic inspection by an authorised inspection body (OCA) every 5 years. Companies with fleets can include their charging points in a maintenance contract together with the OCPP software. If you would rather not think about it, the yearly charger service can be part of our home maintenance plan.

Guide prices

We give you the repair price before doing it, and if a repair is not worth it, we tell you.

Manufacturer’s warranty

The legal warranty is two years, and manufacturers such as Wallbox or V2C extend it to three. If your charger is under warranty, we do not open it without speaking to the manufacturer first: we carry out an external diagnosis, document the fault and help you arrange the repair or replacement. We know the main brands installed in Seville, which we review on our EV charger brands page.

Garages and homes where we see it most

In the underground garages of new developments in Sevilla Este, Palmas Altas or Entrenúcleos, signal is the weak point: under several floors of concrete the charger easily loses Wi-Fi, and a repeater or a cable connection is advisable. In villas in Mairena, Tomares or Bormujos, with the charger in the porch or on the façade, storms and damp are the bigger concern. And in flats with low contracted power (potencia contratada), a charger installed without load balancing ends up tripping the power limiter (ICP). If your charger has had problems from the start, the fault may lie in the original installation: we review the home EV charger for houses or the one in the communal garage and bring it into line with ITC-BT-52. If the RCD trips in the rest of the home too, see RCD keeps tripping. Every charging option is on the EV charger installation page.