E26
Grundig Water Quality / Dosing Sensor Fault

Washer-dryer shows E26; may be related to water hardness or dosing sensor (on models with automatic dosing).

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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

Faulty conductivity sensor, Blocked sensor chamber, Wiring fault to sensor, Control board sensor processing error

How to Fix / Troubleshooting

Safety first: Disconnect power and water supply before working on internal water circuits.

  • Identify sensor: On Grundig models with water quality sensing, locate the conductivity or turbidity sensor in the circulation or inlet path.
  • Clean sensor chamber: Remove the sensor if possible and clean any detergent or limescale deposits from the sensing surfaces.
  • Check wiring: Inspect the harness from the sensor to the PCB for damage or loose connectors.
  • Replace sensor: If cleaning and wiring checks do not resolve E26, replace the sensor with a Grundig-compatible part. If the error persists, the PCB may require service.
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Repair Difficulty

Hard 4/5

Required Part

Water Conductivity Sensor
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