23/07/2026
In this video, I repair a PV 3200 Hybrid Solar Inverter with a 09 Fault and show the complete troubleshooting and repair journey from fault diagnosis to final testing.
The inverter had major power section issues, including damaged DC-side MOSFETs and shorted output IGBTs. This video covers how the faulty components were identified, replaced, tested, and the inverter was successfully restored to working condition.
🔧 Complete Repair Steps Covered:
✅ PV 3200 Hybrid Inverter 09 Fault diagnosis
✅ Finding blown DC-side MOSFETs
✅ Checking shorted output IGBTs
✅ Complete IGBT replacement to maintain proper balance
✅ Replacing damaged gate resistor components
✅ Professional PCB cleaning after component failure
✅ Testing IGBT and MOSFET drive voltages
✅ SG3525 driver circuit checking and troubleshooting
✅ Installing new components safely
✅ Final testing with battery, mains, and PV input
✅ Confirming the 09 Fault is completely cleared
This video is useful for:
⚡ Solar inverter repair technicians
⚡ Electronics repair professionals
⚡ Hybrid inverter troubleshooting learners
⚡ Power electronics enthusiasts
Watch the complete repair process and learn practical techniques used in real inverter troubleshooting.
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