Tier1 Drive Gear / Cam Noise

Softener makes loud clicking or grinding noises during regeneration.

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Safety Warning

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.

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Possible Causes

Worn or broken drive gears, Misaligned cam, Debris in gear train, Failing valve motor

How to Fix / Troubleshooting

Safety first: Unplug the unit before removing the control head cover.

  • Observe during regen: Start a manual regeneration and listen closely to locate the noise source (motor area vs. valve body).
  • Inspect drive assembly: Remove the cover and examine the drive gears and cam. Look for missing teeth, cracks, or misalignment.
  • Clean and lubricate: Remove any debris from the gear area. Some Tier1 gear trains are self-lubricating; do not add grease unless specified by the manufacturer.
  • Check motor shaft: Ensure the motor shaft is not bent and that the gear is firmly attached.
  • Replace worn parts: Install a new drive gear kit or valve motor if components are visibly damaged or the noise persists.
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Repair Difficulty

Medium 3/5

Required Part

Tier1 drive gear kit
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