ToughTek CM-Series Mixers Troubleshooting Advice

Frequently Asked Questions

  • Increase the water flow meter control setting to increase the water added to the material.
  • Clean out the obstruction.
  • Find a suitable water source that provides adequate pressure.
    • The water feed must be able to supply water pressure of 40 psi or greater or else the mixer will not operate in the forward direction. A pressure switch that controls the forward direction operation of the mixer activates at 40 psi, allowing for forward operation. If water pressure is below 40 psi and the mixer must be operated in the forward direction, the pressure switch can be bypassed by connecting the water pressure bypass plug.
  • Decrease the water flow meter control setting to decrease the water added to the material.
  • Add more material to the hopper or silo.
  • Check connections in electrical enclosure.
  • Check for correct voltage supply at the disconnect and VFD terminals L1, L2, L3.
  • Turn power disconnect switch to OFF and wait one minute for VFD to reset. 
  • Allow the motor to cool if conditions occur frequently.
  • See “VFD overload fault” section for possible causes.
  • Reduce motor load.
  • Lower pressure.
  • Reduce length and/or increase diameter of hose.

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