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ZAPI Controllers · PUMP VACC NOT OK
Pump VACC Not OK

What this code means

The minimum of the lift potentiometer is not correctly set.

Applies to: ZAPI ACE0 / COMBIAC0 controller.

Possible causes / checks (from the source)

It is suggested to repeat a “PROGRAM VACC” procedure.

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (PUMP 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.