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ZAPI Controllers · PUMP VMN HIGH
Pump VMN High

What this code means

This test is carried out when the pump motor is turning (pwm applied). The pump motor output is higher than expected, considering the pwm applied.

Applies to: ZAPI ACE0 / COMBIAC0 controller.

Possible causes / checks (from the source)

It is suggested to check: A) Motor connections B) If motor windings/cables have leakages towards truck frame C) If no problem are found on the motors, the problem is inside the controller

Need the part?

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