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Tara EdwardsSep 4, 2025
How to resolve grid interference with SOLIS Inverter?
- EericbakerSep 4, 2025
If the SOLIS Inverter is experiencing grid interference, try restarting the inverter. If the problem continues, consider changing the power board.
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If the SOLIS Inverter is experiencing grid interference, try restarting the inverter. If the problem continues, consider changing the power board.
How to fix a NO-GRID error on a SOLIS S5 Inverter?
If your SOLIS Inverter displays a NO-GRID error, it means the inverter isn't detecting the grid. To troubleshoot, with the DC switch OFF, check the AC voltage at the inverter test points (L-L, L-GND). Also, check the LCD reading, as there may be a bad measurement circuit. With the DC switch ON, check the grid standard. If the issue persists, replace the inverter.
What to do if my SOLIS S5 shows 'Over Temperature'?
If your SOLIS Inverter is showing an 'Over Temperature' error, check the ventilation around the inverter to ensure it's not obstructed. Also, verify whether the inverter is exposed to direct sunlight during hot weather.
What to do if SOLIS Inverter LCD has no power?
If your SOLIS Inverter's LCD has no power, check the PV input connections. Also, verify the DC input voltage (single phase >120V, three phase >350V) and ensure that the PV+/- connections are not reversed.
What to do if my SOLIS Inverter shows 'Over DC voltage'?
If your SOLIS Inverter is showing an 'Over DC voltage' error, reduce the number of modules in series.
Why my SOLIS Inverter can not start-up?
If your SOLIS Inverter cannot start up, check if the connectors on the main board or power board are securely fixed. Also, check if the DSP connector to the power board is properly connected.
What to do if a SOLIS Inverter shows UN-G-V (Under Grid Voltage) error?
If your SOLIS Inverter is showing a UN-G-V error, it means the inverter detects the grid voltage as being too low. To troubleshoot, with the DC switch OFF, check the AC voltage at the inverter test points. If the AC voltage measures low, adjust the lower limit with permission from the utility. Also, check the LCD voltage reading, as it may be a bad measurement circuit. With the DC switch ON, check the grid standard. If the issue persists, replace the inverter.
What to do if SOLIS S5 is internally damaged?
If the SOLIS Inverter is internally damaged, do not turn off the DC switches, as this will further damage the inverter. Wait for the solar irradiance to reduce and confirm the string current is less than 0.5A with a clip-on ammeter before turning off the DC switches. Note that damages due to wrong operations are not covered under warranty.
What to do if SOLIS Inverter shows over DC bus voltage?
If the SOLIS Inverter shows over DC bus voltage, check the inverter inductor connection and the driver connection.
How to reduce DC voltage on SOLIS S5?
If the SOLIS Inverter shows over DC voltage, reduce the number of modules in series.
General| Number of MPPTs | 2 |
|---|---|
| Output Voltage | 230 V |
| Frequency | 50/60 Hz |
| Max. AC Output Power | 5000W |
| Operating Temperature Range | -25°C to +60°C |
| Rated AC Output Power | 2.5 kW / 3 kW / 3.6 kW / 4 kW / 5 kW / 6 kW |
| Max. AC Output Current | 21.7A |
| Cooling Method | Natural Convection |
| Humidity | 0~100 % |
| Model | S5 Series |