C and G Autos

Troubleshooting EV Charging Problems: What to Do When Your EV Won’t Charge

Electric vehicles (EVs) are becoming more common on UK roads, offering a cleaner, more efficient alternative to petrol or diesel. But like any vehicle, EVs can run into issues — and charging problems are among the most frustrating. Whether you’re plugging in at home or at a public charging point, a charging fault can leave you stuck.

Here’s a practical guide to help you troubleshoot common EV charging problems and get back on the road safely.

1. Start with the Simple Checks

It may sound obvious, but the basics are often overlooked:

  • Is the charging cable properly connected? Ensure both ends — at the car and the charge point — are securely plugged in.

  • Is there power? If you’re at home, check the charger is switched on and receiving power.

  • Has the vehicle been unlocked? Some EVs require the car to be unlocked before charging can begin.

2. Inspect the Charging Port and Cable

Take a look at the charging port and cable for signs of damage or obstruction. Dirt, water or debris inside the connector can interrupt charging. If necessary, wipe down the connectors with a dry, clean cloth.

3. Try a Different Charging Point

If you’re at a public charge point and nothing is happening, it could be the charger that’s faulty. Use another bay if one is available, or check the charger’s status on the network provider’s app. Some chargers go offline for maintenance or due to faults.

4. Check the Car for Error Messages

Most EVs will display a message or symbol on the dashboard or infotainment screen if there’s a charging issue. Make a note of it and refer to the owner’s manual. If in doubt, contact your vehicle manufacturer’s customer support.

5. Look Out for Software Glitches

EVs are highly computerised, and sometimes a software bug can interfere with charging. Restarting the car or unplugging and plugging in again may resolve the problem. Make sure your EV software is fully up to date — some charging problems can be fixed with updates from the manufacturer.

6. Home Charging Issues

If your EV won’t charge at home:

  • Check your consumer unit (fuse box) – a tripped circuit breaker might be the cause.

  • Look for warning lights on the home charger unit – red or flashing lights usually indicate an error.

  • Try a standard 3-pin socket (if your vehicle allows it) to see if the issue is with the wallbox.

7. Battery Temperature Concerns

EVs are smart enough to protect their battery packs. If the battery is too hot or too cold, the car may delay or limit charging. This is especially common in very hot or very cold weather. Allow the battery to stabilise before trying again, or move the car to a shaded or indoor area.

8. If All Else Fails – Get a Professional Diagnosis

If you’ve tried the steps above and your EV still won’t charge properly, the issue may be deeper — such as a fault in the battery management system or onboard charger.

At C&G Autos in Slough, we’re equipped to inspect and diagnose electric vehicles. Whether it’s a software issue, charging port fault or a deeper electrical concern, our team can help you get back to hassle-free driving.

Need Help with Your EV? Book a Check with C&G Autos

As electric cars become more common, we’re proud to offer EV servicing and support for drivers across Slough and the surrounding area. If you’re dealing with charging problems, don’t wait around — let us take a look.

Contact us today or book online — and drive electric with confidence.