A4MH : (E28) High Current Motor

To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.

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 the 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