Learn how to troubleshoot a blank screen on your Growatt inverter with no lights showing.
First, check the power supply to the inverter. Ensure all connections are secure and that the inverter is receiving power from the solar panels.
Yes, a blown fuse can interrupt power to the inverter, resulting in a blank screen. Inspect the fuses and replace any that are blown.
A blank inverter screen often indicates a disruption in the power supply, either from the solar array or the utility grid. The inverter relies on a stable DC input voltage to operate; if this voltage drops below the minimum threshold, the inverter will shut down to protect its internal components. Additionally, a ground fault detection mechanism may trigger a fault if it senses an unsafe condition, leading to an automatic shutdown. Communication failures can also prevent the inverter from reporting its status, resulting in a blank display.
The Growatt inverter displays a completely blank screen with no LED indicators illuminated. There are no alerts in the monitoring app, and the system is not producing any energy, indicating a complete operational failure.
Always ensure that safety protocols are followed. If you are not a licensed electrician or certified solar installer, do not attempt repairs or diagnostics on the inverter. Contact a qualified licensed technician for assistance.
To prevent future occurrences of a blank inverter screen, regularly inspect and maintain all electrical connections, ensure proper grounding, and conduct routine performance checks of the solar array. Implementing a monitoring system can help detect issues early before they lead to operational failures.