Softener makes loud clicking, grinding, or humming noises during regeneration.

Safety first: Unplug the unit before opening the valve head. Use bypass if you need to remove components.

• Identify noise source: Start a manual regeneration and listen carefully to locate whether the noise comes from the drive motor area or the valve body.
• Inspect cam and gears: Remove the top cover and examine the cam gear and any intermediate gears. Look for missing or worn teeth and replace the gear set if damaged.
• Check rotor and seals: Remove the rotor and seal kit and inspect for scoring or deformation that could cause binding. Replace if worn.
• Test motor alone: With the rotor removed, briefly power the unit and run regen to see if the motor runs smoothly. If it hums loudly or vibrates excessively, replace the drive motor.
• Remove debris: Inspect the valve head for any foreign objects or resin beads that may have migrated into moving parts and remove them.