Learn how to troubleshoot and fix the clicking noise from your CMS Solar Inverter relay.
A clicking noise in solar inverters can indicate a relay fault or internal component issue. It's essential to inspect the inverter for any visible damage or loose connections.
Start by checking the inverter's display for error codes. Ensure all connections are secure and inspect the relay for any signs of malfunction.
The clicking noise typically indicates that the inverter's internal relay is cycling in response to fault conditions. This can occur due to insufficient insulation resistance (RISO) detected between the inverter's output and ground, which triggers ground fault detection mechanisms. The inverter may also click if it encounters overvoltage conditions, where the input voltage from the solar array exceeds the inverter's operational limits. Furthermore, incorrect inverter settings can prevent proper operation, causing the relay to engage and disengage repeatedly.
Homeowners may notice a persistent clicking noise coming from the CMS solar inverter, often accompanied by LED indicators blinking in a specific pattern. Monitoring apps may display alerts indicating a fault status or reduced energy production, suggesting the inverter is unable to operate normally. Additionally, the system may exhibit lower-than-expected energy output, which can be confirmed through historical production data.
Always consult a licensed electrician or certified solar installer when performing troubleshooting or repairs on solar inverter systems to ensure compliance with safety protocols and local electrical codes.
To avoid future occurrences of relay fault clicking, ensure regular maintenance of the solar array and inverter, including periodic insulation resistance testing. Verify that the inverter's settings are correctly configured and monitor environmental conditions that may lead to moisture ingress. Additionally, consider installing surge protection devices to mitigate overvoltage risks from the utility grid.