E31
Hansa
NTC Temperature Sensor Fault
Washer displays E31; temperature reading error.
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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
Open or shorted NTC sensor, Loose NTC connector, Damaged wiring between NTC and control module, Faulty control module input
How to Fix / Troubleshooting
Safety first: Unplug the washer and allow it to cool.
- Locate NTC sensor: It is usually mounted in the heater flange or directly in the tub wall near the heater.
- Check connection: Ensure the NTC plug is firmly seated and free of corrosion. Clean contacts if necessary.
- Measure resistance: At room temperature, measure NTC resistance. Compare with Hansa specifications (commonly around 20 kΩ at 25 °C). A reading near 0 Ω (short) or infinite (open) indicates a bad sensor. Replace the NTC.
- Inspect wiring: Trace the harness from the NTC to the control board for damage. Repair or replace as needed.
- Control module: If a new NTC and good wiring still give E31, the control board input may be defective and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
NTC Temperature Sensor
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