Culligan Mechanical Drive or Gear Damage

Softener makes loud clicking, grinding, or knocking noises during regeneration

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Worn or broken cam gear, Loose drive motor, Debris in valve, Misaligned piston

Safety: Disconnect power and place the unit in bypass before opening the valve head.

Remove control cover: Inspect the drive motor and gear train while gently rotating the cam by hand (with power off).
Look for damage: Check for missing gear teeth, cracked cam, or loose mounting screws.
Clean debris: Remove any foreign objects or plastic shavings from the gear area.

Persistent loud mechanical noise usually indicates the need to replace the drive motor and/or cam gear assembly.

Hard 4/5

Culligan drive motor and cam gear set

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