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Error code reference

Electrolux Dryer Error Code 0x71

Drying NTC Error

Electrolux codesElectrolux dryer codes

Drying NTC Error – NTC1 failure or Wiring defective or Main Board defective.

First step from the service manual

Measure resistance between J9-4 and J9-5 Connector terminals; expected 5.3 KΩ ± 5%.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What 0x71 means on a Electrolux dryer

Error code 0x71 on an Electrolux dryer indicates a Drying NTC (Negative Temperature Coefficient) error, specifically related to the NTC1 temperature sensor. This thermistor is responsible for monitoring air temperature inside the drum or duct during the drying cycle. The main control board uses the resistance reading from NTC1 to regulate heat output and protect the appliance from overheating. When the board detects a resistance value that falls outside the expected parameters, it triggers the 0x71 fault and halts operation.

The diagnostic starting point is a resistance measurement at the J9 connector on the main board. Probing between pins J9-4 and J9-5 should yield approximately 5.3 KΩ with an acceptable tolerance of plus or minus 5%, meaning any reading between roughly 5.035 KΩ and 5.565 KΩ is considered normal at the reference temperature. A reading significantly above or below this range points to a failed NTC1 sensor. An open circuit or reading near zero ohms indicates a shorted sensor, while an infinite resistance reading suggests an open-circuit failure or a broken wire in the harness.

Three components are implicated in this fault: the NTC1 sensor itself, the wiring harness connecting NTC1 to the main board, and the main control board. The sensor is the most common failure point, but damaged or corroded connector pins at J9 and broken wires along the harness route can produce identical symptoms. If both the sensor resistance and wiring continuity check out correctly, the main board's input circuitry may be defective, requiring board replacement to resolve the fault.

Source: manufacturer service documentation.

Common causes of 0x71

  1. 01

    Failed NTC1 Temperature Sensor

    Part replacement

    The NTC1 thermistor has failed open or shorted internally, producing a resistance reading outside the 5.3 KΩ plus or minus 5% specification at J9-4 to J9-5. This is the most frequent cause of 0x71 and requires sensor replacement.

  2. 02

    Damaged or Disconnected Wiring Harness

    Wiring / connection

    Wires between the NTC1 sensor and the J9 connector on the main board may be broken, pinched, or corroded, causing an incorrect resistance reading at the board. Inspect the full harness run and connector pins for visible damage or corrosion.

  3. 03

    Corroded or Loose J9 Connector Pins

    Wiring / connection

    Poor contact at the J9 connector terminals can introduce resistance into the circuit or create an intermittent open, triggering the fault even when the sensor itself measures correctly. Clean and firmly reseat the J9 connector as part of initial diagnosis.

  4. 04

    Defective Main Control Board

    Part replacement

    If the NTC1 sensor resistance measures within spec and the wiring harness shows no faults, the input circuitry on the main board responsible for reading the J9-4 to J9-5 signal may have failed. Board replacement is required in this scenario.

See the test procedure for each cause

Frequently asked questions about 0x71

What does 0x71 mean on a Electrolux dryer?
Error code 0x71 on an Electrolux dryer signals a Drying NTC error, meaning the control board has detected a problem with the NTC1 temperature sensor circuit. The fault can originate from the sensor itself, the wiring harness, or the main control board. The dryer stops operation when this code appears to prevent unsafe temperatures. Diagnosis begins with a resistance check at connector J9 pins 4 and 5, which should read approximately 5.3 KΩ.
Can I fix error code 0x71 myself on my Electrolux dryer?
A knowledgeable DIYer with a multimeter can perform the initial resistance test at J9-4 and J9-5 to determine whether the NTC1 sensor is within its 5.3 KΩ plus or minus 5% specification. If the sensor or wiring is at fault, replacing those components is generally straightforward. Main board replacement is more involved and may be better suited to a qualified technician.
Is it safe to keep using my dryer when error code 0x71 is showing?
No, you should not continue running the dryer while 0x71 is active. The NTC1 sensor is a critical safety component that monitors drying temperatures, and a failed sensor means the dryer cannot properly regulate heat. Operating without a functioning temperature sensor risks overheating the appliance or its contents.
How much does it cost to repair error code 0x71 on an Electrolux dryer?
If only the NTC1 sensor needs replacement, parts typically range from around $15 to $50 depending on the specific model, with labor adding $75 to $150 if a technician performs the work. A wiring harness repair is generally in a similar labor range with minimal parts cost. Main board replacement is the most expensive outcome, with parts commonly ranging from $100 to $300 or more, plus labor.
Will resetting my Electrolux dryer clear the 0x71 error code?
A power reset may temporarily clear the displayed code, but the 0x71 fault will return immediately or shortly after the next cycle begins if the underlying problem has not been corrected. Because the error is tied to a live sensor reading, the control board will re-detect the fault as soon as it checks the NTC1 circuit. Proper repair of the sensor, wiring, or board is necessary for a permanent fix.

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