Growatt SPF-3500ES - Page 24

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Fig.5 Diode Position
b. Every IGBT has 3 pins ( G, C, E ). Put black tong of multimeter on C pin and Put Red tong of
multimeter on E pin.
0.38-0.7V on multimeter is normal. If multimeter display zero, it means the IGBT has short circuit.
c. Replace broken IGBT.