Water remains hard at taps even though the Aqua Dial softener appears to run normally

Safety first: No electrical work is required, but if you open plumbing connections, isolate water and relieve pressure first.

• Test hardness: Use a hardness test kit on water before and after the softener. If both are similar, the softener is not exchanging ions effectively.
• Check salt level: Ensure there is adequate salt in the brine tank and that a solid salt bridge has not formed (see separate salt bridge entry).
• Verify settings: Confirm hardness and capacity settings on the Aqua Dial controller match your actual water hardness and model specification.
• Run manual regeneration: Initiate a full manual regeneration and retest hardness after completion.
• Resin condition: If hardness remains high, the resin may be fouled or exhausted. Plan to replace the resin with a compatible Aqua Dial resin grade or have a technician perform a resin rebed.