Err FL
Kenmore
False Flow Detection
Display shows “Err FL” or similar and unit reports flow when no water is running
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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.
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Possible Causes
Sticking turbine wheel, Electrical noise on flow sensor wiring, Shorted flow sensor, Control board input fault
How to Fix / Troubleshooting
Safety first: Unplug the unit before opening the cabinet.
Step-by-step checks:
- 1. Confirm no actual flow:
- Ensure all faucets and appliances are off.
- Check the home water meter to confirm no water usage.
- 2. Inspect turbine / flow meter:
- Remove and clean the turbine wheel and housing.
- Ensure the magnet wheel is intact and not wobbling.
- 3. Wiring inspection:
- Check the flow sensor harness for damaged insulation or shorts.
- Reseat the connector at the control board.
- 4. Replace components:
- If false flow continues, replace the turbine / flow meter assembly.
- If a new turbine does not resolve the issue, replace the electronic control board.
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Repair Difficulty
Medium
3/5
Required Part
Turbine / Flow Meter Assembly
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