AO Smith Excessive Regeneration Frequency

Softener appears to regenerate too frequently (daily or more) without obvious reason.

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Possible Causes

Hardness set too high, Incorrect capacity setting, Flow meter misreading high usage, Hidden leaks in plumbing

How to Fix / Troubleshooting

Safety first: No hazardous work is required for basic checks.

Check for leaks and usage:

  • Inspect toilets, faucets, and outdoor spigots for leaks.
  • Monitor the softener’s usage display (if available) to see if it reports unusually high daily gallons.

Verify programming:

  • Confirm hardness and capacity settings match your water conditions and softener size.
  • Adjust reserve capacity or safety factor if set too conservatively.

Flow meter check:

  • If usage readings are clearly wrong, inspect and clean the turbine/flow sensor.

After adjustments, monitor regeneration frequency over several days. If still excessive, the control board or flow sensor may need replacement.

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Repair Difficulty

Easy 2/5

Required Part

Turbine / Flow Sensor Assembly
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