What this code means

In standby condition (pump motor not driven), the feedback coming from the current sensor in the pump chopper gives a value out of a permitted range, because the pump current is not zero.

Applies to: ZAPI ACE0 / COMBIAC0 controller.

Possible causes / checks (from the source)

This type of fault is not related to external components; replace the controller.

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (PUMP I NO ZERO), machine model and serial number — we quote genuine and OEM replacement parts for export.