AO Smith Excessive Brine Refill / Over-Regeneration

Softener uses too much salt; salt level drops very quickly and salt consumption is higher than expected.

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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

Brine refill setting too high, Leaking brine valve, Incorrect capacity programming, Stuck brine float in low position

How to Fix / Troubleshooting

Safety first: Unplug the unit before adjusting internal components.

Check programming:

  • Verify the salt dosage or brine fill time setting in the control. Compare with AO Smith recommendations for your model and hardness.
  • Ensure the capacity setting is not excessively low, which can cause frequent regenerations.

Inspect brine valve and float:

  • Remove the brine float assembly and check for debris preventing it from shutting off at the correct level.
  • Inspect the brine valve in the control head for wear or debris that could allow extra water into the brine tank.

Adjust settings to recommended values and clean or replace the brine float assembly or brine valve if they do not shut off properly.

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Repair Difficulty

Medium 3/5

Required Part

Brine Valve Assembly
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