Water softener resin tank with its control valve next to a storage tank

Generic photo: రవిచంద్ర (Ravichandra) · CC BY-SA 4.0

Water softener noises during regeneration: normal vs fault

A regeneration cycle is noisy by design: the valve motor hums and clicks as it steps through positions, water rushes to the drain, and brine is drawn through the resin. That is normal as long as it ends when the cycle ends (typically a couple of hours). Noise that goes on for hours, runs outside regeneration, or sounds like grinding or banging points to a stuck valve, a clogged brine line, worn parts or a water pressure problem.

Cross-checked ~30 min easyBrands: All

Before you start

Put the softener in bypass and unplug it before opening the control head

Diagnostic steps

Unlock all 5 steps with expected values

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