Repair Solar Inverter & Charger Felicity IVEM5048 5000W: Fault Code 03

Описание к видео Repair Solar Inverter & Charger Felicity IVEM5048 5000W: Fault Code 03

We turn on and we see fault code 03 (bus soft start fail)
Disassembly & general check
Check The INV Full Bridge IGBT: Shorted
Check Buck IGBT: Shorted
(60G65WE)
Check Output capacitors 20uF/350VAC: Normal
Replacing The INV Full Bridge and Buck IGBT
there is a damaged PCB PAD & Broken PCB Trace so we will disassembly all IGBT
Replacing optocoupler A350
Replacing: Gate drive IGBT resistors and Diode
- 47 Ohm
- 10 Ohm
- A2
Check and replacing damaged Output Circuit Zener: 15V
Assembly and final test

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