Possible faults of the inverter include: abnormal input voltage, abnormal output voltage, overload protection, short circuit protection, overtemperature protection, battery undervoltage protection, battery overcharge protection, battery reverse connection protection, output waveform distortion, and fault indicator light.
These faults may be caused by circuit failure, aging of components, and external environment. Timely detection and repair of these faults can ensure the normal operation of the inverter and extend the service life.