E14
Crystal Quest Resin tank level / conductivity sensor fault

Display shows E14 and unit reports resin tank sensor error (on models with tank sensors).

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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

Disconnected or damaged resin tank sensor cable, Failed conductivity or level probe, Corroded sensor contacts, Control board sensor input failure

How to Fix / Troubleshooting

Safety first: Unplug the softener before handling any sensor wiring.

  • Locate sensor: Identify the resin tank sensor on the Crystal Quest unit (often mounted on the tank head or side).
  • Inspect wiring: Check the sensor cable for cuts, abrasions, or loose connectors. Reseat the connector on the main PCB.
  • Clean contacts: If the sensor uses exposed metal probes, clean them with a non-abrasive pad and rinse with clean water.
  • Replace sensor: If E14 persists, install a new Crystal Quest resin tank sensor. If a new sensor does not clear the error, the main control board sensor input is likely defective and should be replaced.
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Repair Difficulty

Medium 3/5

Required Part

Crystal Quest resin tank sensor
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