EEPROM checksum Immediate disconnection

What does 94 mean?

This fault signals a disruption in the inverter's internal electronics, specifically an EEPROM checksum error. This can be caused by external electromagnetic compatibility (EMC) interference or an internal defect within the inverter's hardware, potentially leading to corrupted stored parameters. The inverter immediately disconnects to prevent operation with compromised data.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the fault persists, the EEPROM or inverter electronics may be defective; the unit should be sent in for repair by qualified service personnel.