Learn about SolarEdge Error Code 18x37, its causes, and troubleshooting solutions for low grid voltage issues.
Error Code 18x37 indicates that the grid voltage is too low for the inverter to operate safely. This can lead to performance issues and potential damage if not addressed.
To fix low grid voltage issues, check the voltage levels at your inverter and consult your utility provider. You may need to adjust settings or upgrade your electrical infrastructure.
The SolarEdge inverter triggers the 18x37 fault code when it detects that the AC voltage from the utility grid falls below the acceptable threshold for safe operation. This is a protective measure to prevent damage to the inverter and connected solar array. The inverter continuously monitors grid conditions, including voltage and frequency, and will shut down if these parameters deviate beyond specified limits. A low voltage scenario can occur due to various factors, including utility grid issues or improper system practices that lead to excessive voltage drop.
Users will observe the inverter displaying a fault code 18x37, typically accompanied by a red LED indicator or an alert on the monitoring app indicating grid voltage too low. This condition may also lead to a decrease in energy production, as the inverter will cease operation to protect itself and the connected equipment.
Always consult a licensed electrician or certified solar installer when troubleshooting electrical systems. Working with solar equipment can be hazardous, and safety protocols must be strictly followed.
To prevent future occurrences of the 18x37 error, ensure that all wiring is installed according to NEC guidelines, using appropriate gauges for the distance involved. Regularly inspect and maintain connections to prevent corrosion and ensure tightness. Additionally, keep abreast of local utility grid conditions and any changes in regulations that may affect inverter settings. Regular system performance checks can also identify potential issues before they lead to fault codes.