How to Fix / Troubleshooting

Safety first: Disconnect power before removing the valve cover. Avoid placing fingers near gears when powered.

Remove cover: Take off the plastic cover on the valve head to expose the motor and gears.
Inspect gears: Look for missing teeth, cracks, or excessive play in the gear train. Replace damaged gears with BWT gear kits.
Check cam alignment: Ensure the cam is properly seated on the shaft and not wobbling. Realign or tighten as needed.
Listen to motor: With the cover off (but keeping clear), briefly power the unit and start a regeneration to listen. A loud humming without rotation suggests a failing motor.
Lubrication: Do not apply grease unless specified by BWT; many gears are designed to run dry.

Persistent loud noises usually require replacement of the drive motor or gear set.

BWT softener makes loud clicking or grinding noises during regeneration

Possible Causes