If the screen is lit but the output is zero, try restarting the inverter per manufacturer instructions. Disconnected DC or AC cables: If the inverter is not receiving power from the solar panels or cannot deliver it to your home's electrical system, output drops to zero. Blown internal fuses: Just like. Before you panic or immediately call a technician, there are several simple troubleshooting steps you can take to potentially resolve the issue yourself. Many common solar problems have surprisingly simple solutions that don't require professional intervention. This step-by-step guide will help you. One of the most alarming issues homeowners face is when a solar inverter shows no output at all. This can happen for several reasons: a tripped breaker, a blown fuse, disconnected wires, or even internal inverter faults. Let's explore why this happens and how to fix it—whethe. How to troubleshoot a solar system? How to troubleshoot a solar system? This article describes how you can troubleshoot a solar system in basic steps.