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Error code reference

Electrolux Dryer Error Code 0x73

Steamer NTC Error

Electrolux codesElectrolux dryer codes

Steamer NTC Error – NTC2 failure or Wiring defective or Main Board defective.

First step from the service manual

Measure resistance of NTC3 between J8-1 and J8-2 Wiring Connector terminals; expected 4.9 KΩ to 6.5 KΩ at 20°C to 25°C.

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

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What 0x73 means on a Electrolux dryer

Error code 0x73 on an Electrolux dryer indicates a Steamer NTC Error, specifically pointing to a failure in the NTC2 temperature sensor circuit within the steamer system. NTC (Negative Temperature Coefficient) sensors are thermistors that change resistance in response to temperature. When the main board detects a resistance reading outside the expected range from this sensor circuit, it triggers this fault and halts steamer operation to prevent damage or unsafe conditions.

The primary diagnostic starting point is measuring resistance across the J8-1 and J8-2 terminals of the wiring connector associated with NTC3. At an ambient temperature of 20°C to 25°C, the correct resistance should fall between 4.9 KΩ and 6.5 KΩ. A reading significantly above or below this range points to a failed thermistor. An open circuit reading (infinite resistance) typically indicates a broken sensor or severed wire, while a very low or near-zero reading suggests a short in the wiring or sensor.

Three components are implicated in this fault: the NTC2 sensor itself, the wiring harness connecting the sensor to the main board, and the main board. Because the sensor and wiring are far more likely to fail than the board, those should be fully evaluated before considering a board replacement. Inspect the wiring harness for pinching, heat damage, or corroded connector pins at J8, as these can introduce resistance variations that mimic sensor failure.

Source: manufacturer service documentation.

Common causes of 0x73

  1. 01

    Failed NTC2 thermistor

    Part replacement

    The NTC2 temperature sensor itself has failed, producing a resistance reading outside the 4.9 KΩ to 6.5 KΩ range expected at room temperature. This is the most common cause and is confirmed by measuring across J8-1 and J8-2 with a multimeter.

  2. 02

    Defective or damaged wiring harness

    Wiring / connection

    The wiring between the NTC2 sensor and the main board connector J8 may be broken, pinched, or corroded, causing an open circuit or incorrect resistance reading. Inspect the full harness length and connector pins for visible damage or corrosion.

  3. 03

    Corroded or loose connector at J8

    Wiring / connection

    Moisture from the steamer system can corrode the J8 connector terminals, increasing contact resistance and triggering a false sensor fault. Disconnecting, inspecting, and cleaning or reseating the connector often resolves intermittent versions of this error.

  4. 04

    Defective main control board

    Part replacement

    If the sensor resistance measures correctly and the wiring shows no faults, the main board may have failed and is misreading the sensor signal. This should only be concluded after fully ruling out the sensor and wiring.

See the test procedure for each cause

Frequently asked questions about 0x73

What does 0x73 mean on a Electrolux dryer?
Error code 0x73 on an Electrolux dryer signals a Steamer NTC Error related to the NTC2 temperature sensor in the steam system. The fault indicates the sensor has failed, the wiring to the sensor is defective, or the main control board is faulty. The dryer identifies the problem by detecting a resistance reading outside the expected 4.9 KΩ to 6.5 KΩ range at the J8 connector terminals.
Can I fix error code 0x73 myself on my Electrolux dryer?
A knowledgeable DIYer can perform the initial diagnostic by measuring resistance across the J8-1 and J8-2 connector terminals using a multimeter. If the reading falls outside 4.9 KΩ to 6.5 KΩ at room temperature, the sensor or wiring needs attention. Replacing a thermistor or repairing a wiring connection is manageable for those comfortable working with appliance components, but main board replacement is more complex and may warrant professional service.
Is it safe to use my Electrolux dryer while error code 0x73 is active?
The dryer's steam function will not operate correctly while this error is present, as the control board cannot accurately monitor steamer temperature. Running the steam cycle in this condition is not recommended. Standard drying cycles may still function, but the underlying fault should be diagnosed and repaired before relying on steam features.
How much does it cost to repair error code 0x73 on an Electrolux dryer?
Repair costs vary depending on the failed component. Replacing an NTC thermistor sensor is typically the least expensive repair, with parts generally ranging from $15 to $60. If the main control board is at fault, parts alone can range from $100 to $300 or more, with additional labor costs if a technician is involved. Wiring repairs fall somewhere in between depending on the extent of the damage.
Will resetting my Electrolux dryer clear error code 0x73?
A power reset may temporarily clear the error code from the display, but the fault will return if the underlying hardware problem has not been corrected. Because 0x73 reflects an actual sensor reading failure rather than a software glitch, the defective sensor, wiring, or board must be properly diagnosed and repaired for the error to stay cleared.

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