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ZAPI Controllers · VACC NOT OK
VACC Not OK

What this code means

The test is made at key-on and after 20sec that both the travel demands have been turned off. This alarm occurs if the ACCELERATOR reading in the TESTER menu’ is 1,0V higher than PROGRAM VACC min acquisition when the accelerator is released.

Applies to: ZAPI ACE0 / COMBIAC0 controller.

Possible causes / checks (from the source)

Check the mechanical calibration and the functionality of the potentiometer.

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (VACC NOT OK), 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.