What this code means

It occurs when the embedded WATCH DOG protection is not able either to cut off the power stage when not triggered or it is not able to activate the power stage when triggered.

Applies to: ZAPI AC-0 SSL Sensored inverter (traction & pump configuration).

Possible causes / checks (from the source)

Verify the motor is connected and the continuity of the three motor phases. If the alarm occurs permanently, it is necessary to replace the controller.

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (MDI-PRC 8), machine model and serial number — we quote genuine and OEM replacement parts for export.