You have parked your electric vehicle, connected the charging cable, opened your charging app and initiated a session. The charger appears operational, your payment or authentication is successful, but charging simply refuses to start.
You try again. Nothing happens.
You disconnect, reconnect and try once more. Suddenly, charging starts!
This is a surprisingly frustrating experience for EV owners using public charging infrastructure. Importantly, not every failed charging attempt means the charger is defective.
In many situations, the problem is related to communication between the electric vehicle and charging station, connector positioning, vehicle locking mechanisms or the charging initiation sequence.
Here are some practical things you can try before abandoning a charging station.
1. Disconnect and reconnect the charging cable
This is probably the simplest and most useful first step.
Sometimes the initial connection between the vehicle and charger does not complete correctly. Disconnecting and reconnecting allows the charging equipment and vehicle to establish a fresh communication session.
What to do:
- Cancel the unsuccessful charging attempt, if necessary.
- Wait until the charger indicates that the session has ended.
- Unlock the connector using the vehicle or charger procedure.
- Remove the charging connector completely.
- Reinsert it firmly until it is fully seated.
- Initiate charging again.
For DC fast charging, ensure that the connector is fully inserted and the vehicle’s locking mechanism engages.
2. Lock and unlock your vehicle
Modern electric vehicles have electronic charging-port locking mechanisms.
Sometimes the vehicle does not correctly recognise the connector’s locked state, even though the cable appears to be connected.
What to do:
- Disconnect the charging cable if it is safe to do so.
- Lock the vehicle using the key or remote.
- Wait a few seconds.
- Unlock the vehicle.
- Reconnect the charging cable.
- Try initiating charging again.
This can help refresh the vehicle’s charging-port and locking state.
Note that locking behaviour varies between manufacturers and models. Some vehicles require the car to be locked during charging, while others have different settings.
3. Check the position of the charging cable
A charging connector may appear connected without making a sufficiently stable physical connection.
This can happen when:
- The charging cable is heavy.
- The vehicle’s charging inlet is positioned at an awkward angle.
- The cable is under tension.
- The connector is not fully seated.
- The vehicle’s locking pin cannot engage correctly.
What to do:
- Check whether the connector is fully inserted.
- Ensure the cable is not pulling sideways or downwards on the connector.
- Support the connector handle while inserting it.
- Allow the locking mechanism to engage before initiating charging.
Some EV owners have reported that supporting a heavy CCS2 connector during initiation resolves connection problems on particular vehicle models.
Never force the connector or pull on the cable while charging.
4. Reposition your vehicle slightly
Sometimes the vehicle’s parking position creates unnecessary tension on the charging cable.
This can affect the connector’s seating and stability.
What to do:
- End the charging attempt.
- Disconnect the cable safely.
- Reposition the vehicle slightly to improve alignment with the charging station.
- Ensure the cable can reach the charging inlet without being stretched or twisted.
- Reconnect and initiate charging again.
This is particularly useful at charging locations where the cable length, parking arrangement or vehicle charging-port position makes connection difficult.
Never move the vehicle while it is connected to the charger.
5. Switch the vehicle off and restart its charging system
An electric vehicle has several electronic systems managing battery charging, communication and safety.
Occasionally, these systems may not complete the charging initiation process correctly.
What to do:
- Disconnect the charging connector.
- Put the vehicle in Park.
- Switch the vehicle off.
- Exit and lock the vehicle.
- Wait approximately 2–5 minutes, where the vehicle manufacturer permits.
- Unlock the vehicle and reconnect the charger.
- Try charging again.
For some vehicles, allowing the onboard systems to enter sleep mode can help clear a temporary communication state.
6. Check your vehicle’s scheduled charging settings
Your vehicle may have scheduled charging enabled.
For example, you may have configured charging to start at midnight to benefit from lower electricity tariffs at home.
When using a public charging station, this schedule may interfere with immediate charging.
What to do:
- Open the vehicle’s charging settings.
- Look for scheduled charging, departure charging or charging timers.
- Temporarily disable the schedule.
- Check that immediate charging is enabled.
- Reconnect and initiate the session.
Also check whether the vehicle has a charging limit that has already been reached.
7. Try another charging connector
If the charging station has multiple connectors, try another compatible connector if available.
Even when the charging station is operational, an individual connector may experience:
- Connector locking problems.
- Communication interruptions.
- Damaged or dirty contacts.
- Cable-related mechanical issues.
- Connector-specific firmware problems.
If another connector works immediately with the same vehicle, report the original connector to the charging network operator.
8. Try a different authentication method
Sometimes the charging initiation problem is not related to the physical connection.
Depending on the charging network, authentication may be performed using:
- Mobile applications.
- RFID charging cards.
- QR codes.
- Contactless payment cards.
If your mobile application does not initiate charging, try another supported authentication method.
Always ensure the previous attempt has been cancelled before initiating another session to avoid duplicate authorisations or payments.
9. Check for dirt, moisture or foreign objects
The charging connector and vehicle inlet contain electrical contacts and communication pins.
Dust, moisture, corrosion or physical damage can interfere with reliable connection establishment.
What to do:
- Inspect the connector visually.
- Check the vehicle’s charging inlet for visible dirt or moisture.
- Look for damaged pins or signs of overheating.
- If the connector is visibly contaminated, report it to the operator.
- Do not insert tools or liquids into the connector.
Never attempt to clean exposed electrical contacts while the equipment is energised.
10. Wait briefly and retry
Charging initiation is not always instantaneous.
The vehicle and charger must complete several checks before electricity can flow.
These may include:
- Connector detection.
- Mechanical locking.
- Communication establishment.
- Battery management system checks.
- Voltage and current negotiation.
- Electrical safety verification.
If the charger appears to be progressing through these steps, allow the process to complete.
If it becomes unresponsive, cancel the attempt, disconnect safely and try again.
Repeatedly pressing Start without checking the previous session can create additional confusion.
Why does this happen?
Electric vehicle charging involves communication between multiple systems.
For DC fast charging, the vehicle and charging station must establish communication and negotiate charging parameters before power delivery begins.
A simplified sequence looks like this:
- The vehicle detects the charging connector.
- The connector is mechanically locked.
- The vehicle and charger establish communication.
- The vehicle communicates battery and charging requirements.
- The charger performs electrical safety checks.
- Voltage and current parameters are negotiated.
- Power delivery begins.
If any of these steps fails, charging may not start.
Importantly, the charging station can appear online and operational in the charging network’s management system while communication between the vehicle and charger is unsuccessful.
This is one reason why some charging problems disappear after disconnecting and reconnecting the cable.
When should you report the problem?
If charging repeatedly fails, even after trying these steps, contact the charging network operator.
Provide the following information:
- Charging station location.
- Charger identification number.
- Connector identification.
- Vehicle manufacturer and model.
- Approximate time of the failed attempt.
- Error message displayed on the charger or vehicle.
- Whether charging eventually started after retrying.
This information helps the operator distinguish between vehicle compatibility, connector, communication and charger hardware problems.
Final thoughts
Public EV charging is a combination of electrical infrastructure, vehicle electronics, communication protocols and software.
A failed charging attempt does not automatically mean the charging station is broken.
In many situations, a simple reconnection, checking the connector lock, adjusting cable positioning or restarting the vehicle’s charging system may resolve a temporary issue.
If the problem persists, report it rather than repeatedly attempting to charge.
Reliable charging infrastructure requires cooperation between vehicle manufacturers, charging equipment manufacturers and charging network operators.