This comprehensive guide explains exactly how solar panels get damaged, how to prevent these issues, and what to do if it happens. Weather-Related Damage 2 2. Poor Installation Practices 3 3. Thermal. Photovoltaic panels are often blocked and will be damaged Photovoltaic panels are often blocked and will be damaged What are the most common technical problems with solar panels? Other than that,the most common technical problems with solar panels can be classified into the following categories. Solar panels are built to last, but occasional issues arise. Switching to solar is one of the smartest investments Southern California homeowners can make. In this guide, we will cover common issues faced by solar users, how to identify them, and practical. Solar panels are remarkably durable, but like any technology exposed to the elements year-round, they can experience performance issues that impact your solar energy production.