E05
Foridra Flow Sensor / Turbine Fault

E05 error and no water flow is registered on the display even when taps are open

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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

Stuck or scaled flow turbine in Foridra valve body, Disconnected or failed flow sensor, Wiring fault between flow sensor and main PCB, Debris lodged in flow meter housing

How to Fix / Troubleshooting

Safety: Turn off power and place the Foridra softener in bypass. Relieve pressure before opening the valve body.

  • Access flow sensor: On most Foridra models, the flow turbine and sensor are located in a side-mounted housing on the valve head. Remove the retaining screws and gently pull out the assembly.
  • Inspect turbine: Check that the small turbine wheel spins freely. Remove any grit, iron sludge, or scale. Soak in vinegar if mineral buildup is present.
  • Check sensor connection: Ensure the sensor plug is firmly seated on the control board. Inspect the cable for cuts or pinches.
  • Reassemble and test: Reinstall the turbine and housing, restore water and power, and open a faucet. Confirm that the display now shows flow. If E05 persists, the sensor or main PCB may need replacement.
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Repair Difficulty

Medium 3/5

Required Part

Foridra flow sensor / turbine assembly
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