Your solar inverter is the heart of your solar system, converting the direct current (DC) produced by your panels into alternating current (AC) used in your home. To check if your inverter is functioning correctly, start with a visual inspection. Most inverters have an LED display or screen. A green light usually means everything is working fine, while red or orange lights often indicate a fault. If there’s a screen, it may show error codes that can be referenced in the inverter manual or manufacturer’s website.
Next, use your solar monitoring app (if available) to check for inconsistencies in energy production. If your system is producing significantly less than usual—especially during sunny days—it could signal an inverter problem. Some inverters also offer historical performance data, which can help you track efficiency trends and detect issues early. Always ensure the inverter is receiving power; a completely blank screen might suggest a tripped breaker or power loss.
If anything seems off, try a basic reset by turning off the AC and DC isolators (usually near the inverter), waiting a few minutes, then turning them back on. However, if warnings persist or you're unsure about what you're seeing, contact a solar technician. Inverters usually last 10–15 years, so if yours is approaching this age, it might be time to consider a replacement.
