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ZAPI Controllers · DRIVER SHORTED
Driver Shorted

What this code means

The driver of the main contactor coil is shorted or the coil is disconnected.

Applies to: ZAPI ACE0 / COMBIAC0 controller.

Possible causes / checks (from the source)

A) Check if there is a short or a low impedance pull-down between NMCC CNA#12 and –BATT. B) The driver circuit is damaged in the controller, which has to be replaced. C) The wires to the LC coil are interrupted or not connected, so check the coil related harness.

Need the part?

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

Source: ZAPI COMBIAC0 & ACE0 User Manual (AF6ZP0AG) via Heli Canada document library (doc.heliforklift.ca). Single published source — confirm against the manual for your exact model before ordering parts. Compiled 2026-10-30. No manufacturer affiliation.