What Does Error Code E71 Mean on an Electrolux Washing Machine?
Check and firmly reseat the wiring connector on the NTC temperature sensor at the back of the drum — a loose connection is the most common cause and reseating it often clears the error immediately (takes about 10 minutes).
Fault description
Error code E71 points to a problem with the NTC (Negative Temperature Coefficient) thermistor — the small sensor responsible for monitoring the water temperature inside the drum during a wash cycle. When this sensor sends a reading that falls outside the expected range, or stops sending a signal altogether, the machine's control board flags E71 and typically halts the programme to prevent overheating or ineffective washing.
You may notice the machine stopping mid-cycle, refusing to heat the water, or displaying the error shortly after a wash begins. In some cases the drum will fill and tumble normally but the cycle will not progress past a certain point because the control board cannot confirm a safe operating temperature.
The good news is that E71 is often caused by a loose wire or a failed sensor rather than a major electronic fault, and both are within reach of a careful homeowner with basic tools.
Causes
- Loose or corroded wiring connector on the NTC sensor — The connector linking the temperature sensor to the wiring loom can work loose over time due to vibration. Corrosion on the terminals can also interrupt the signal, causing the control board to read an open circuit.
- Failed NTC temperature sensor — The thermistor itself can fail, either going open circuit or drifting so far out of its calibrated resistance range that the control board rejects its readings. This is a common wear item, especially on machines several years old.
- Damaged wiring harness — The wires running from the sensor to the control board can become pinched, chafed, or broken — particularly where they pass through the cabinet or around moving parts. A break anywhere in the circuit produces the same open-circuit error.
- Faulty main control board — If the control board's input circuit for the NTC sensor has failed, it will misread or fail to read a perfectly good sensor. This is less common but should be considered once the sensor and wiring have been confirmed as good.
- Water or detergent ingress at the sensor connector — Moisture inside the connector block can cause intermittent short circuits or corrosion that disrupts the sensor signal. This sometimes produces an E71 that appears and disappears across different cycles.
Step-by-Step Fix
- 1
Power down and unplug the machine
Switch the machine off at the programme dial and unplug it from the mains socket. Wait at least two minutes before opening any panels — this allows residual charge in the control board to dissipate and is an essential safety step before touching any internal components.
- 2
Clear the error and run a test cycle
After unplugging, wait two minutes, then plug back in and select a 40°C cotton cycle. Sometimes a transient voltage spike triggers E71 and a simple reset clears it. If the error returns, continue to the steps below.
- 3
Locate the NTC temperature sensor
Remove the rear panel of the machine (usually held by two or three screws along the top edge). The NTC sensor is a small cylindrical or disc-shaped component clipped into the outer drum, typically near the heater element at the lower rear. Consult your model's wiring diagram if you are unsure — these are often available on the manufacturer's support site.
- 4
Inspect and reseat the wiring connector
Disconnect the two-pin connector from the sensor, check the terminals for corrosion or bent pins, and clean them gently with a dry cloth or fine emery paper if needed. Push the connector firmly back onto the sensor until it clicks. Reassemble the panel, restore power, and run a test cycle to see if the error clears.
- 5
Test the NTC sensor resistance
With the machine unplugged and the connector removed, set a multimeter to the resistance (Ohms) setting and place the probes on the two sensor terminals. At room temperature (around 20°C) a healthy NTC sensor typically reads between 4,000 and 6,000 Ohms — check your model's service data for the exact value. A reading of zero, infinity, or wildly outside the expected range confirms the sensor has failed and needs replacing.
- 6
Replace the NTC temperature sensor
Order a replacement sensor matched to your exact model number (found on the label inside the door frame). Unclip the old sensor from the drum, fit the new one in its place, and reconnect the wiring. Sensors are generally inexpensive and straightforward to swap without specialist tools.
- 7
Inspect the full wiring harness
If a new sensor does not clear the fault, trace the wiring from the sensor back towards the control board, looking for any pinched, melted, or broken sections. Repair any damaged wire with a proper crimp connector or replace the harness section. If the wiring is intact and the sensor is confirmed good, the control board input circuit is the likely culprit.
Affected models
Select your model to see its full troubleshooting page.
When to call a service technician
Contact a service technician if you have replaced the NTC sensor and confirmed the wiring harness is undamaged, but the E71 error continues to appear. This combination of symptoms strongly suggests the fault lies within the main control board itself, which requires specialist diagnostic equipment and soldering skills to repair or replace safely.
You should also call a technician if you find signs of burning, melted insulation, or water damage around the sensor area or control board — these indicate a more serious underlying problem that goes beyond a straightforward sensor swap and could pose a safety risk if left unaddressed.
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Frequently Asked Questions
Can I still use my Electrolux washing machine while it shows E71?
It is not advisable. When E71 is active, the machine cannot reliably monitor water temperature, which means it may overheat the water or fail to heat it at all. Running cycles in this state risks damaging fabrics and could place additional strain on the heater element. It is best to resolve the fault before using the machine again.
How do I know if the NTC sensor or the control board is at fault?
Test the sensor with a multimeter as described in Step 5. If the resistance reading is within the expected range and the wiring is intact, the control board is the likely cause. A service technician can confirm this with dedicated diagnostic tools, but ruling out the sensor first saves unnecessary expense.
Will E71 clear itself after the machine cools down?
Occasionally an E71 caused by a loose connector will disappear after the machine is switched off and restarted, because the connector settles back into contact. However, if the underlying cause is not fixed, the error will return — often mid-cycle. A self-clearing error should still be investigated rather than ignored.
How much does an NTC sensor cost for an Electrolux washing machine?
Replacement NTC sensors are generally one of the more affordable washing machine spare parts, typically ranging from around £8 to £25 depending on the model. Always buy a part matched to your specific model number to ensure compatibility and correct resistance characteristics.
Is E71 the same fault as E72 or E73 on Electrolux machines?
They are related but distinct. E71 specifically refers to the drum NTC temperature sensor circuit. E72 and E73 on some Electrolux models relate to different temperature sensor readings or thresholds. Always check your model's manual or the manufacturer's fault code list to confirm the exact meaning for your specific machine before ordering parts.