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Amanda ShermanSep 5, 2025
What to do if ABB Inverter shows HW mismatch fault?
- DDavid RollinsSep 5, 2025
If the ABB Inverter displays 'HW mismatch' fault: 1. Power down the inverter. 2. Restart the inverter. If the same fault occurs again, power down the inverter and contact your system supplier. The cause is that internal HW board and SW versions do not match.










