Why is Your OHME Charger Offline? How to Fix it?

OHME chargers sometimes can encounter connectivity issues that leave EV owners puzzled and inconvenienced. If you’ve ever wondered why your OHME charger is offline or unresponsive, you’re not alone.

In this article, we delve into the common causes behind OHME charger connectivity problems and provide practical solutions to get your charger back online and fully operational.

What are the Reasons and Fixes of Your OHME Charger Being Offline?

There might be a couple of problems if your OHME charger is offline. Regardless of the problem, what I’d recommend doing first, is trying to perform a full power reset by toggling the fuse switch. It might help reestablish a stable connection.

However, to find out the exact cause, keep on reading.

1. API Changes and Compatibility

One of the frequent culprits is changes to car manufacturers’ APIs. For example, some users report that Kia had altered their API, causing a breakdown in communication between OHME chargers and certain Kia EVs.

When this happens, the charger may not be able to access essential data about the vehicle’s state of charge. As a result, the charger might operate based on assumptions rather than precise measurements.

Solution: In cases where API changes affect connectivity, charging manually by setting the desired percentage can help. However, this workaround is not ideal. Keep an eye on updates from both the car manufacturer and OHME for compatibility fixes.

2. Charging Schedule Misalignment

Some users found their OHME chargers departing from their preset charging schedules. Instead of waiting for lower electricity rates as planned, the charger initiated charging immediately, leading to higher costs.

Solution: To regain control over your charging schedule, consider activating your EV’s in-car schedule settings until any app or firmware issues are resolved. This can prevent unexpected charging costs and maintain the efficiency of your charger.

Important: EV battery replacement can cost $1000s. To avoid high-voltage battery replacement, there are some things you can do. Read this article to find out the 10 best ways to maximize EV battery life and save tons of money!

3. Power Supply Issues

One of the most common reasons your OHME charger may go offline is a problem with the power supply. EV chargers require a steady and reliable source of electricity to function correctly. If there is a power outage or a problem with the electrical circuit, your charger may not work.

Solution: Check your home’s electrical supply and make sure it’s functioning correctly. If there’s a power outage in your area, you may need to wait for it to be resolved. To prevent future issues, consider installing a surge protector or a dedicated circuit for your EV charger.

4. Network Connectivity Problems

Many modern EV chargers are connected to the internet for monitoring and control. If your EV charger relies on a network connection and that connection is lost, it may go offline.

Solution: Check the network connection for your EV charger. Ensure that your Wi-Fi or Ethernet connection is stable. If the problem persists, you may need to reset the network settings on your charger and reconfigure the connection.

Also read: EV Battery in Hot Temperature: 5 Things to Know

5. Software Updates and Glitches

Like any electronic device, OHME chargers require periodic software updates to ensure they operate efficiently. If you haven’t updated your charger’s firmware in a while, it may experience glitches or go offline.

Solution: Check for software updates for your EV charger. Most manufacturers provide instructions for updating the firmware. Follow the guidelines carefully to ensure a successful update. In case your charger has frozen due to a software glitch, try rebooting it or performing a factory reset.

6. Charging Station Overload

If you share a charging station with multiple EV owners, there may be times when the charger is overloaded with too many vehicles trying to charge simultaneously. This can lead to reduced charging speeds or an offline charger.

Solution: Coordinate charging schedules with other users if possible, or consider installing additional charging stations to accommodate the demand in your area.


We’ve covered the most common problems, like API changes and compatibility, charging schedule misalignment, power supply issuees, and many more.

Remember to start with a power reset by toggling the fuse switch if your OHME charger goes offline. With these solutions, you can ensure a smoother charging experience and stay ready for the road ahead in your electric vehicle.