Softener appears to regenerate at random times, not at the programmed regeneration time.

Safety first: Avoid interrupting a regeneration mid-cycle unless necessary; if you must, place the unit in bypass first.

• Verify clock: Check and correct the time-of-day on the control.
• Check regen mode: Some Hellenbrand controls can be set to immediate or delayed regeneration. If set to immediate, the unit may regenerate as soon as capacity is exhausted.
• Review power stability: Frequent outages without a working backup battery can desynchronize the clock. Replace the backup battery or capacitor if needed.
• Reset control: Perform a factory reset and reprogram. Monitor for a few days to see if random regenerations stop.
• Board replacement: If behavior persists, the control board may be faulty and require replacement.