SolarEdge › PV strings and DC wiring
Inverter shows Night Mode in full daylight
manufacturer says
Symptoms
- The display reads Night Mode, or a screenless inverter shows only the blue LED, in full daylight with no production
- A string measures far below the expected roughly 1 V per optimizer (4 V or 4.5 V on a 14 to 17 panel string in two independent videos), or a string reads correctly with the DC safety switch off and collapses once it is turned on
- The panels-communicating count is short
Alerts and codes
Night Mode
The cause and the fix
Subscribers see the cause, the fixes that worked and who did them, part numbers and recent prices when a part is involved, and the field reports behind this entry.