SolarEdge fault guides
Plain answers to the fault codes and alerts we see most often on solar systems, with what our own monitoring and service records show.
- SolarEdge inverter: arc fault detected — what to do now
The inverter has detected a possible electrical arc in the solar DC circuit. Treat this as urgent. Switch the system off with the inverter ON/OFF switch, do not restart it repeatedly, and call a professional.
- SolarEdge inverter: DC isolation fault — what it means and what to do
The inverter has detected that the solar array is not properly isolated from ground, which can mean a ground fault in the DC wiring. Treat it as urgent. Switch the system off with the inverter ON/OFF switch, do not restart it repeatedly, and call a professional.
- SolarEdge inverter: external fan fault — what to do
This alert means one of the inverter's external cooling fans is not working. SolarEdge's steps are to check the cable, clean or replace the fan, and open a support case if it persists. A technician should handle it.
- SolarEdge inverter: grid frequency error — what to do
This means the inverter detected the grid's AC frequency outside its allowed range, which affects production. SolarEdge's guidance is to check the country setting and consult the grid operator. Wait and recheck the app, and contact a professional if it continues.
- SolarEdge inverter: grid voltage error — what it means and what to do
This means the inverter measured AC voltage outside the allowed range and stopped producing to protect the system. SolarEdge says the inverter should restart once the voltage returns to normal. Wait, check the app, and contact a professional if it keeps coming back.
- SolarEdge inverter: no communication with the inverter — what to do
This alert means the monitoring platform cannot communicate with your inverter. The cause is often your home network, but it can also be the inverter being off. Check the router and the inverter status lights, make sure the solar breaker is on, and contact a professional if it continues.
- SolarEdge inverter: no communication with the meter — what it means
This alert means the monitoring platform is not getting data from the energy meter connected to your system. SolarEdge raises it only after no communication for at least a full day. Metering data in the app may be missing, so a technician should check the meter connections.
- SolarEdge inverter: no site communication — what it means and what to do
This alert means the SolarEdge monitoring platform is not receiving data from your system. Often the inverter has lost its internet connection rather than stopped producing. Check that your router is on and that the inverter lights look normal, restart your router once, and contact a professional if it does not return.
- SolarEdge inverter: production issue detected — what to do
This alert means the inverter's voltage is low and it is not producing energy. SolarEdge points to underperforming power optimizers, for example from shade, snow, dirt, or a malfunction. Check for snow or shade from the ground and contact a professional if it does not clear.
- SolarEdge power optimizer: no communication — what it means
This alert means a power optimizer, the small device at a panel, is not sending data to the monitoring platform. SolarEdge lists shading and connection problems among the things to check. Look at the monitoring layout to see which one, note it, and contact a professional.