Growatt SPF-3500ES, Руководство по устранению неисправностей

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Testing method:
1. Make sure that saving mode on 4th option is disabled. Or inverter won
’t have 230V AC output. It will
affect your judgement.
2. Check if 1-21th options are reasonable, PV and battery side is normal.
3. After the confirmation, you can doubt that board may be damaged.
4. You can uncover the inverter and confirm it further. In usual, most probably mosfets or IGBT on
mainboard are broken. About how to test mosfet or IGBT , please read 09fault, 53fault.
Solution:
Replace damaged board, most probably damaged mosfets or IGBT on mainboard
M alfunction Reason:
Based on experience, most of time, mainboard is broken. Software can
’t detect the malfunction so that it
can
’t have the fault or waring on LCD.
Part II. Warning