Display shows “Err 07” and the unit indicates a high flow or leak condition even when no water is running.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety first: Turn off power and place the softener in bypass if a leak is suspected. Inspect for actual water leaks around the unit.
Verify actual flow:
- Ensure all fixtures in the home are off. Check toilets for slow leaks and any RO systems or humidifiers that may be drawing water.
- If no water is being used, but the display shows flow, the turbine sensor is likely misreading.
Inspect the turbine:
- Remove the top cover and locate the turbine/flow sensor on the outlet side of the valve.
- Remove and clean the turbine wheel and housing, ensuring it spins freely and is not partially jammed.
- Check the sensor wiring for damage or loose connections.
System reset: Restore power and clear the error. Monitor the flow reading with all fixtures off. If the display still shows flow, replace the turbine/flow sensor. If a new sensor does not correct the issue, the control board may need replacement.
Repair Difficulty
Required Part
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