The charger problems for my 2013 Volt started some months ago. It starts with a soft horn noise repetitively then it would read "charge override interrupt occurred," and stop charging the car. It become more frequent until it wouldn't reset. We called the original charger manufacturer, Bosch, and they said to flip the breaker switch off and then on. When we did it made a loud pop, began smoking and it quit working. They said it was out of warranty because it was over 3 years old. We bought a clippercreek charger and it worked for a couple of weeks then the soft alarm error messages began again. We took the Volt to the dealership, after a while they said we needed to do a software update. They charged us for that because it wasn't under warranty, but the next day it did it again. The dealer now says it's a charger problem, but two different brands doing the same thing sounds wrong. Any advice?