Softened water feels hard; white scale on fixtures even though the AquaHouse softener appears to run normally and no error code is shown.

Safety first: You can perform most checks with the unit powered. Use BYPASS if you need to open plumbing.

Step-by-step:

• 1. Check bypass position: Ensure the AquaHouse bypass is fully in SERVICE, not partially in BYPASS.
• 2. Test water hardness: Use a hardness test kit on water before and after the softener. If both are similar, the softener is not exchanging hardness.
• 3. Verify regeneration: Confirm the unit is regenerating at the programmed times and that you hear water flow to drain during backwash and brine draw.
• 4. Inspect brine tank: Ensure there is adequate salt and a few inches of water at the bottom. If the tank is dry, add 2–3 gallons of water and run a manual regeneration.
• 5. Clean injector and brine line: Remove and clean the AquaHouse venturi injector and check the brine line for blockages as described in brine-draw related procedures.
• 6. Consider resin condition: If hardness remains high after proper regeneration, the AquaHouse cation resin may be exhausted or iron-fouled and require chemical cleaning or replacement.