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

Safety: Use caution when opening the brine tank and valve head. Disconnect power and isolate water if removing components.

• Test hardness: Use a hardness test kit to measure raw and treated water. Confirm that treated water is not being softened.
• Check bypass: Verify that the Idrobase bypass valve is fully in service position. A partially open bypass can mix hard and soft water.
• Verify programming: Confirm that raw water hardness and resin volume are correctly set so the controller calculates proper capacity.
• Inspect brine: Ensure there is adequate salt and that the brine tank contains saturated brine (water should taste very salty). If not, clean the brine tank and refill with fresh salt.
• Resin condition: If the unit is old or has been exposed to iron or chlorine, the resin may be exhausted or fouled. Consider performing a resin cleaner treatment or replacing the resin bed.