Display shows “Err 07” and the unit fails to complete regeneration within the expected time.

Safety first: Place the system in BYPASS and disconnect power. Open a faucet to relieve pressure.

Check drain line:

• Inspect the drain line from the control valve to the drain for kinks, clogs, or freezing.
• Ensure the drain line has an adequate air gap and is not submerged in standing water.
• Disconnect the drain line at the valve and flush it with water to confirm it is clear.

Check water pressure:

• Verify that the home’s water pressure meets Kinetico’s minimum requirement (typically 25–30 psi). Very low pressure can cause long regeneration times.
• Check for partially closed shutoff valves or clogged pre-filters upstream of the softener.

Valve and motor:

• Observe the unit during a manual regeneration (with power restored). Confirm that the drive motor advances through each cycle position.
• If the motor stalls or hesitates, refer to the motor fault procedure and consider replacing the motor assembly.

Resolution: After clearing any restrictions and verifying pressure, reset the controller and run a full manual regeneration. If Err 07 recurs, internal valve seals or pistons may be worn and require professional rebuilding of the control head.