If the solar display screen appears black, it can denote several issues with the solar inverter or monitoring system. Check power supply connections, 2. Perform a reboot of the system. Recently, I have received many private messages from customers saying that the screen of the inverter in the power station suddenly “blackened” and it would not light up even after tapping and hitting the screen, which made them panic. Today, let's talk about this frequently asked question: What is. The inverter does not display because the LCD has no DC input or the auxiliary power supply is abnormal. At this time, it is necessary to measure the DC input voltage of the inverter with. However, like. Ever walked up to your photovoltaic inverter expecting to see performance data, only to find a ghostly white screen staring back? You're not alone.