Learn about Growatt Error Code 25, its causes, and how to troubleshoot it effectively.
Error Code 25 typically indicates a relay self-test failure in the inverter. This can affect the inverter's performance and requires troubleshooting.
To resolve a relay self-test failure, check the inverter's connections and settings. If the issue persists, consult the user manual or contact support.
Error 25 indicates a relay self-test failure within the inverter's internal diagnostics. This self-test is crucial for ensuring that the relay, responsible for disconnecting the inverter from the grid during faults, is functioning correctly. If the inverter detects anomalies such as insufficient insulation resistance (RISO), ground faults, or voltage irregularities, it triggers this error to prevent unsafe operation. The inverter's logic relies on precise measurements of electrical parameters, and any deviation can lead to protective actions being enacted.
Upon encountering Error 25, users will typically observe the inverter displaying an error message on the monitoring app or via the LED indicators on the unit. The inverter may not produce power, and an alert may indicate a relay self-test failure. Users may notice fluctuations in energy production or complete cessation of output.
Always adhere to safety protocols when working with electrical systems. It is strongly recommended that any troubleshooting or repair work be conducted by a licensed electrician or certified solar installer to ensure compliance with safety standards and local regulations.
To prevent Error 25 from recurring, ensure regular maintenance checks are performed on the inverter and associated wiring. Keep the inverter's firmware updated and conduct periodic insulation resistance tests to catch potential issues early. Verify that the grounding system is intact and meets local electrical codes. Ensure that any modifications to the solar array or electrical system are performed by qualified personnel.