Symptoms
- No sounds or water movement at the scheduled regeneration time
- Manual regeneration button/lever does nothing
- Display or clock on the control head is blank or wrong
- Water hardness gradually creeping back up
Likely causes
- CommonUnplugged or lost powerA tripped outlet, unplugged cord, or power outage can reset or stop the control head without obvious signs.
- CommonIncorrect time or day settingsAfter a power loss, the clock can reset, causing the unit to regenerate at the wrong time or skip it.
- PossibleWorn drive motor or gears in the control valveThe motor that turns the valve to start regeneration can wear out over years of use.
- PossibleFaulty circuit board or control headElectronic controls can fail outright on newer digital softeners.
What to do
- Check that the unit is plugged in and the outlet has power (test with another device).
- Reset the clock and regeneration schedule per the manual if the display shows an incorrect time.
- Try triggering a manual regeneration using the control head's button or dial.
- Listen for the motor trying to turn during a manual cycle; a faint humming with no movement suggests a worn motor or jammed valve.
- Note any error codes on digital models and check them against the manufacturer's manual.
- Replace the drive motor if it's confirmed faulty, which is often a specific, orderable part for your model.
Tools and parts
- Screwdriver
Softener control valve drive motorSearch: “water softener control valve motor replacement”
When to call a pro
Call a water treatment technician if the control board or valve assembly needs diagnosing beyond a simple motor swap.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.