When your EV charger flashes an error code, it’s easy to feel frustrated. But once you understand what those codes mean, you’ll have the confidence to troubleshoot issues or know when to ask for help. In this guide, we’re walking you through the most common EV charger error codes you’ll see in India—covering both AC and DC chargers from top manufacturers like Tata Power (Delta), Exicom, ABB, Okaya, and Servotech.
Whether you’re using a home charger or stopping at a highway fast charger, this guide will help you stay on the move.
How AC and DC Charger Errors Differ
AC chargers—used at home, offices, or public spots—typically run at 3–22 kW. DC fast chargers, on the other hand, deliver power at 15 kW and above. While both types can show error codes, the nature of these errors can vary:
- AC Chargers often throw errors related to grid input (over/under voltage), wiring, or grounding issues.
- DC Chargers may alert you about communication failures with the vehicle, insulation problems, or hardware faults in high-voltage components.
Let’s break them down by brand.
Tata Power / Delta Charger Error Codes: What to Watch For
Tata Power’s DC chargers commonly use Delta hardware. These error codes typically begin with “004…”
Exicom Chargers: Common Codes and Fixes
Exicom chargers often use 3-digit codes. Here are a few you might encounter:
ABB Chargers (Terra Series): What the Codes Mean
ABB Terra AC and DC chargers use hexadecimal codes:
Okaya Chargers: Interpreting Their Faults
Okaya doesn’t publish specific codes, but here are common error types their chargers can display:
Servotech Chargers: Typical Errors to Know
Servotech doesn’t publish codes publicly, but here’s what we’ve confirmed from manuals and installations:
What You Should Do Next
Next time you face an EV charger error, you’ll know what’s going on and what to do—whether it’s as simple as waiting for voltage to stabilize or calling support for a locked connector.
Make your charging routine easier and smarter:
- Download the Pulse Energy App (Pulse Energy Google Play Store & Pulse Energy App Store) to find the best nearby chargers, plan routes across India, and get real-time charging updates.
- Join the Pulse Community Forum to connect with EV owners, ask questions, and share your experiences.
With these tools and knowledge, you’re in control. Stay powered and enjoy the ride!
Frequently Asked Questions (FAQs)
1. What should I do when a Tata Power charger shows error 004001?
This code means the input voltage is too high—above 305V. It’s often caused by grid surges. You can wait for the voltage to stabilize or report the issue to the station operator. The charger might resume automatically once it’s safe.
2. Why do Exicom chargers show error code 308?
Error 308 typically points to a communication failure between your EV and the charger. It could be a loose plug, a timeout, or a software glitch. Try unplugging and firmly re-plugging the connector. If it keeps happening, check if your EV needs a software update or notify the operator.
3. What does 0x0002 mean on an ABB Terra AC charger?
This is a residual current error—meaning the charger detected leakage current. Charging will stop to protect you and the vehicle. Don’t try to restart it. Instead, report the issue so the charger can be inspected by a technician.
4. Why did my Okaya charger shut down suddenly?
If your Okaya charger stopped unexpectedly, it could be due to grid issues (like voltage drops or phase loss), overheating, or a ground fault. Most of these require professional support, so it’s best to report the fault instead of retrying multiple times.
5. How do I fix a communication error on a Servotech charger?
If your charger says it can’t communicate with your vehicle, it might be due to a loose or incomplete connection. Unplug the connector and plug it back in properly. If the problem continues, stop the session and call the support team.
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