What this code means

This alarm occurs when there is an overload on one of the following connections: CNA#1, CNA#3, CNA#4 and CNA#6. Typically the problem is due to a short circuit of one of the coils connected to these outputs. After the overload has removed, the alarm exits automatically by releasing and then enabling a travel demand.

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

Possible causes / checks (from the source)

Check the coils of the main contactor (CNA#1), of the electromechanical brake (CNA#3), of the pump contactor (CNA#4), of the Aux valve (CNA#6).

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (MDI-PRC 76), machine model and serial number — we quote genuine and OEM replacement parts for export.