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Error code reference

Electrolux Washer Error Code 71

Drum water NTC failure (tub heater) (on select models).

Electrolux codesElectrolux washer codes

Drum water NTC failure (tub heater) (on select models).

First step from the service manual

Refer to test (13) - Check resistance of water NTC, should be around 4.8K ohms.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What 71 means on a Electrolux washer

Error code 71 on an Electrolux washer indicates a failure in the drum water NTC (Negative Temperature Coefficient) sensor, which is associated with the tub heater system. The NTC sensor is a thermistor responsible for monitoring water temperature inside the drum. As water temperature rises, the resistance of an NTC sensor drops in a predictable curve. When the control board reads a resistance value outside the expected range, it interprets this as a sensor fault and triggers error code 71. This code appears only on select Electrolux models equipped with an internal tub heating element.

The primary diagnostic step for this fault is to measure the resistance of the water NTC sensor directly. At normal operating conditions, the sensor should read approximately 4.8K ohms. A reading significantly above or below this value confirms a failed or degraded thermistor. Readings of near-zero ohms suggest a short circuit in the sensor or its wiring harness, while an open circuit reading (infinite resistance) points to a broken sensor element or a severed wire.

Common root causes include a failed NTC thermistor, damaged wiring between the sensor and the control board, corroded connector terminals, or in some cases a faulty control board that misreads the sensor signal. Water intrusion into the connector harness is a frequent contributor to intermittent resistance shifts that trigger this code. Before replacing any components, technicians should inspect the full wiring path from the sensor to the board for pinched, burned, or corroded conductors.

Source: manufacturer service documentation.

Common causes of 71

  1. 01

    Failed NTC thermistor

    Part replacement

    The water NTC sensor itself has failed and no longer reads the correct resistance of approximately 4.8K ohms. This is the most common cause and is confirmed by measuring resistance directly at the sensor terminals.

  2. 02

    Corroded or damaged wiring harness connector

    Wiring / connection

    Moisture or heat near the tub can corrode the connector pins between the NTC sensor and the control board, causing resistance readings to shift out of range. Inspect connectors for green or white oxidation and clean or replace as needed.

  3. 03

    Broken or pinched wire in the sensor circuit

    Part replacement

    A wire in the NTC circuit that has been pinched by the drum assembly or burned by the heater element can create an open or short circuit. Visual inspection of the full wire run is required to locate this fault.

  4. 04

    Water intrusion into the sensor or connector

    Wiring / connection

    Water leaking onto the NTC sensor body or its wiring connector can cause intermittent or false resistance readings. Check for signs of moisture or mineral deposits around the sensor mounting point near the heater.

  5. 05

    Faulty control board

    Part replacement

    If the NTC sensor and all wiring test correctly at approximately 4.8K ohms, the control board may be misinterpreting the sensor signal due to a failed input circuit. This is the least likely cause and should only be diagnosed after all other components are confirmed good.

See the test procedure for each cause

Frequently asked questions about 71

What does 71 mean on a Electrolux washer?
Error code 71 on an Electrolux washer indicates a failure in the drum water NTC sensor, which is the thermistor used to monitor water temperature in the tub heater system. The control board expects the sensor to read around 4.8K ohms and triggers this code when the reading falls outside an acceptable range. This fault only appears on select Electrolux models that include an internal tub heating element. The washer will stop operating until the fault is diagnosed and corrected.
Can I fix error code 71 on my Electrolux washer myself?
A knowledgeable DIYer with a multimeter can perform the initial diagnostic by testing the NTC sensor resistance, which should read approximately 4.8K ohms. If the reading is correct, inspecting the wiring harness and connectors for corrosion or damage is the next step and requires no special tools. Replacing the NTC thermistor is a moderately straightforward repair, though accessing the sensor near the tub heater may require partial disassembly of the machine. If the control board is at fault, professional diagnosis is recommended.
Is it safe to use my Electrolux washer when error code 71 is displayed?
It is not advisable to continue using the washer while error code 71 is active. Because the NTC sensor monitors water temperature for the tub heater, a failed sensor means the heater system cannot be properly regulated. Running the washer in this condition could result in overheating, damage to laundry, or additional component failures. Cold-water cycles without heating may still function, but the underlying fault should be resolved promptly.
How much does it cost to repair error code 71 on an Electrolux washer?
If the repair only requires a new NTC thermistor, parts typically cost in the range of $15 to $50 depending on the specific model. Professional labor for this type of sensor replacement generally adds $75 to $150 to the total. If the control board is the cause, board replacement can bring the total repair cost to $200 to $400 or more. Checking the wiring and connectors first is always worthwhile since a cleaning or connector repair may resolve the fault at no parts cost.
Will resetting my Electrolux washer clear error code 71?
A power reset may temporarily clear error code 71 from the display, but the code will return if the underlying fault with the NTC sensor or its wiring has not been corrected. Resetting the machine does not repair a failed thermistor or damaged wire. If the fault is intermittent due to a loose connector, a reset might allow the washer to run temporarily, but the issue will reappear. A proper resistance test of the NTC sensor is needed to confirm whether the fault is resolved.

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