There are two basic types of warranties that cover solar panels. 1. A product warranty protects you from defects in a solar panel stemming from material quality or manufacturing errors. This is also referred to as an equipment or materials warranty 2. A performance warranty guarantees that a panel will maintain a certain percentage of its original. In addition to product and performance warranties from solar panel manufacturers, you should also be aware of installer warranties and warranties through marketplaces like solar.com.A solar panel warranty is important to have, but it won't do much good unless you can monitor your system and identify issues. You may be able to identify larger issues, such as cracking, with the naked eye. But performance issues are most easily identified through a digital system monitoring app or web portal. Most modern solar inverters come equi. If you notice a visible defect or performance issue with one of your solar panels, your first move is to call your installer. Do NOT handle the panel or try to fix the issue yourself, as this can void your warranty. Your installer will perform an onsite and/or remote inspection of the panel to diagnose of the issue. If it stems from the manufacture. As a long-term investment in energy savings and the ecosystem, it is crucial to protect your solar panels with robust manufacturer and installer warranties. Manufacturers typically offer two types of solar panel warranties: Product and performance. Together, these protect you from panel defects and ensure your panels are able to perform at a certai.