How to troubleshoot a SmartSolar that shows low output?

Inspect System Configuration and Connections

Inspect the SmartSolar charge controller settings to ensure they match the system’s configuration. Check the ‘Maximum Power Point Tracking (MPPT) voltage range’ and ‘Maximum charge current’ settings to ensure they are set correctly for the solar panel array. For example, if the solar panel array is 24V with 200W panels, set the MPPT voltage range to 20-28V and the maximum charge current to 10A. Verify the solar panel wiring and connections are secure and not damaged.

Analyze System Performance with Cerbo GX

Use the Cerbo GX monitoring system to analyze the SmartSolar’s performance. Check the ‘System’ tab to view the solar panel array’s performance, including the ‘Voltage’ and ‘Current’ output. If the voltage output is low, it may indicate a problem with the solar panel array or the charge controller. Check the ‘Status’ tab to view any error messages or warnings. If the system is not producing the expected power output, check the ‘History’ tab to view the system’s performance over time.

Check System Temperatures and Voltage Thresholds

Check the system temperatures, including the temperature of the SmartSolar charge controller, the solar panels, and the batteries. If the temperatures are high, it may indicate a problem with the system’s cooling or a malfunctioning component. Check the SmartSolar’s ‘Temperature’ settings to ensure they are set correctly. Also, verify the voltage thresholds are set correctly to prevent overcharging or over-discharging of the batteries. For example, set the ‘Absorption Voltage’ to 14.4V and the ‘Equalization Voltage’ to 15.5V for a 12V battery system.