Water remains hard even after the AquaSoft softener has recently regenerated.

Safety first: No electrical work is required for basic checks. Close the inlet valve if removing the control head.

• Verify bypass position: Ensure the AquaSoft bypass is fully in the "Service" position, not in bypass or mid-position.
• Check salt and bridging: Open the brine tank and confirm there is adequate salt. Break up any salt bridge and remove hardened salt chunks. Refill with clean pellet salt.
• Confirm programming: Verify that raw water hardness and resin capacity are correctly set in the control. Increase hardness setting slightly and force a manual regeneration.
• Test hardness: After regeneration, test water hardness at a nearby faucet. If still hard, the resin may be exhausted or iron-fouled.
• Resin replacement: If the unit is older or has been exposed to iron, consider replacing the AquaSoft cation resin media. This requires depressurizing, removing the control head, siphoning old resin, and refilling with new resin and gravel as specified.