A4NM : High Motor Current

  • A bug identified in software can cause nuisance triggering of this error, especially when running at high pressure and low flow rates.  Upgrade system to the latest system software
  • Check wiring to the motor to ensure no bare wires are touching and that no wires are shorted to ground.


  • Remove pump gear housings from motor and check that motor shaft rotates freely in direction indicated on motor housing.


  • Check pump gear trains for damage and repair or replace as necessary.


  • Repair or replace chemical pump.