This guide provides straightforward troubleshooting strategies for common solar inverter issues, covering reasons for failure, like overheating, electrical surges, and installation errors. We'll. Inverters are the number one component that fails in a residential solar system. A string inverter, the type found in the majority of systems installed before 2022, has a. In this blog, we will discuss major solar inverter problems along with the solutions to common error codes. Inverter is a device that converts DC power to AC and supplies electricity to our household appliances. This guide will help you diagnose what's really going on.