Learn about Deye inverter error code F18, its meaning, causes, and solutions for high AC frequency.
Error code F18 indicates that the AC frequency is too high for the inverter's operation. This can lead to performance issues or shutdowns.
To resolve the F18 error, check the grid frequency and ensure it is within the inverter's operational range. If the issue persists, consult a technician.
The F18 error code is triggered when the inverter detects that the AC frequency is too high for safe operation. Inverters are designed to operate within specific frequency thresholds, typically around 60 Hz for the US grid. If the frequency exceeds this limit, the inverter enters a protective mode to prevent damage to the system and ensure safety. The inverter constantly monitors grid conditions, and if it observes a frequency that exceeds its programmed limits, it will generate the F18 fault to alert the user and halt power conversion to the grid.
When the Deye inverter displays the F18 error code, users may observe a steady or blinking LED indicator, signaling an operational fault. Monitoring apps may reflect a sudden drop in energy production or a complete halt in system performance. Users may also notice alerts regarding AC frequency exceeding acceptable limits, indicating a critical issue with grid compatibility.
Always consult a licensed electrician or certified solar installer when troubleshooting electrical systems. Working on electrical equipment without proper knowledge can result in serious injury or damage.
To prevent the F18 error from occurring in the future, ensure regular maintenance checks of the inverter and surrounding components. Regularly review inverter settings and grid frequency parameters to align with utility requirements. Conduct periodic inspections of wiring and connections to ensure integrity and proper function. Additionally, monitor environmental conditions that may affect inverter performance and mitigate any potential shading or obstructions.