Sterling Water
Drive Train / Gear 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 stripped motor gears, Misaligned cam, Debris in gear train, Failing valve motor bearings
How to Fix / Troubleshooting
Safety: Unplug the softener before removing the control cover. Do not place fingers near moving gears when powered.
Steps:
- 1. Remove control cover: Expose the motor and gear train on the Sterling valve.
- 2. Inspect gears: Look for missing teeth, cracks, or excessive play in plastic gears.
- 3. Check cam alignment: Ensure the cam is properly seated on the shaft and not rubbing against the housing.
- 4. Clean debris: Remove any plastic shavings or foreign material from the gear area.
- 5. Replace motor/gear assembly: If gears are damaged or the motor is noisy, replace the valve motor assembly.
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Repair Difficulty
Medium
3/5
Required Part
Valve Motor Assembly
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