Water remains hard at taps even though the softener appears to run normally (no error code)

Safety: Wear gloves and eye protection when handling resin or chemicals.

• Test hardness: Use a hardness test kit to measure raw water and softened water. If both are similar, the softener is not exchanging ions effectively.
• Verify settings: Confirm hardness and capacity settings on the Aqmos controller match actual water conditions and resin volume.
• Check salt and brine: Ensure the brine tank has adequate salt and that brine is being drawn during regeneration. Correct any brine system issues.
• Clean resin (if fouled): If iron or manganese is present, use a resin cleaner recommended by Aqmos or your dealer. Follow product instructions carefully.
• Replace resin: If performance does not improve, plan to replace the resin bed. This involves depressurizing, disconnecting the tank, removing old resin and gravel, inspecting the distributor tube, and refilling with new Aqmos-compatible resin.