Softener drains continuously to the drain line, even when not regenerating.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Place the softener in bypass to stop water waste and prevent sewer overload. Unplug the unit.
Confirm continuous drain:
- Observe the drain line; if water flows steadily when the unit should be in service, the valve is not sealing.
Inspect valve internals:
- Remove the control head per AO Smith instructions.
- Inspect the rotor and seal pack for wear, cuts, or deformation.
- Check for resin beads or debris lodged in the valve seats.
Replace the rotor and seal kit. If the valve body is cracked or warped, replace the entire control valve head.
Repair Difficulty
Required Part
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