My Handuro inverter board is not working, and I would like to repair it. Can someone help me identify the faulty component or provide guidance on the repair?"

 

terminal block is defective. it is melted. typical but not the only cause is loose connection, causing it to heat up over time. instant overcurrent can blow things up but normally does not have time to melt things. you can start by disconnecting wires and checking continuity across IGBTs to see if they are shorted, check bottom side of PCB for blown tracks....