SMA Earth Fault Alert: Why Morning Moisture in Florida Is the Main Culprit
An SMA “Earth Fault” alert usually means the inverter has detected inadequate insulation between a photovoltaic DC conductor and earth. Florida morning condensation can temporarily lower that insulation resistance through damaged PV cable, connectors, module junction boxes, or backsheets, so the inverter trips at startup and may recover after the array dries. Key Facts at […]