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

Safety first: No immediate electrical work is required. If opening plumbing, shut off water and relieve pressure.

• 1. Test hardness: Use a hardness test kit to measure water before and after the softener. If both are similar, the resin is not exchanging properly.
• 2. Check salt level and type: Ensure the brine tank has adequate clean solar or pellet salt. Avoid rock salt with high impurities.
• 3. Increase salt dosage: Temporarily increase the salt setting or regeneration frequency in the Rayne controller and run a manual regeneration.
• 4. Use resin cleaner: For iron-fouled systems, add a manufacturer-approved resin cleaner to the brine well and run several regenerations.

When to call a technician: If hardness remains high, the resin may be exhausted and require replacement, which involves opening the mineral tank and handling resin media.