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

Safety: No plumbing work is required; only programming and possibly board replacement.

• Set correct time: Re-enter the correct time-of-day, ensuring AM/PM is correct.
• Monitor drift: Check the time again after 24–48 hours. If it has drifted significantly, the clock circuit may be failing.
• Backup power: If power outages are frequent, consider a small UPS for the softener to maintain time.
• Board replacement: Replace the Pentair electronic control board if the clock cannot keep accurate time.