Display shows E05 and the softener will not initiate a scheduled regeneration.

Safety: Unplug the unit before removing the control cover. No plumbing disassembly is required for this fault.

Steps to troubleshoot E05 (Regeneration Initiation Fault):

• 1. Verify programming: Enter the programming menu and confirm the regeneration mode (metered vs. time clock), hardness setting, capacity, and regeneration time are correctly set per SpringWell specifications and your water usage.
• 2. Test manual regen: Attempt to start a manual regeneration using the REGEN or manual button. If the button does not respond, the keypad may be faulty.
• 3. Check keypad function: Press each button and confirm the display responds. If some buttons are unresponsive or intermittent, the keypad membrane or control board is failing.
• 4. Power cycle and reset: Unplug the unit for 5 minutes, then plug back in and reprogram. Monitor whether the unit initiates a regen at the next scheduled time.
• 5. Replace control head: If the clock does not keep time or the unit still fails to start regeneration automatically or manually, replace the SpringWell electronic control head.