mypros+
Error code reference

Electrolux Dryer Error Code Sensor error

Fault in the humidity sensor; may also appear if the machine is run with already-dry laundry or run empty.

Fault in the humidity sensor; may also appear if the machine is run with already-dry laundry or run empty.

First step from the service manual

Open the door and the message should disappear; if persistent, check/replace humidity sensor.

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

MyPros+ Max

Get the full diagnostic procedure for Sensor error.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What Sensor error means on a Electrolux dryer

The Sensor error code on an Electrolux dryer indicates a fault in the humidity sensor circuit. This sensor, sometimes called a moisture sensor, is typically a pair of metal sensor bars located inside the drum that measure the electrical conductivity of laundry as it tumbles. When the laundry is wet, it conducts a small current between the bars, and as it dries, conductivity drops. The control board uses this signal to determine remaining drying time and to end the cycle automatically when the load is dry.

The fault can appear for two distinct reasons. The first is a genuine electrical or mechanical problem with the sensor, such as corroded or coated sensor bars, a broken wire in the sensor circuit, or a failed sensor component that sends an out-of-range signal to the control board. The second is a false trigger caused by operating conditions: running the dryer empty or loading it with laundry that is already dry means the sensor receives no conductivity signal at all, which the board may interpret as a sensor fault rather than a dry load.

Diagnosis begins with opening the dryer door, which should clear the message if the error was triggered by a momentary condition or an empty drum run. If the error persists after reloading with damp laundry and restarting, the sensor bars should be inspected for residue buildup from dryer sheets or hard water minerals. Cleaning the bars with a mild abrasive or rubbing alcohol often restores proper function. If cleaning does not resolve the issue, the sensor wiring and the sensor itself should be tested and replaced as needed.

Source: manufacturer service documentation.

Common causes of Sensor error

  1. 01

    Dryer run empty or with dry laundry

    Wiring / connection

    Running the dryer with no load or with laundry that is already dry gives the humidity sensor nothing to detect, which the control board can flag as a sensor fault. Opening the door typically clears this error immediately.

  2. 02

    Residue buildup on sensor bars

    Wiring / connection

    Dryer sheet coatings, fabric softener residue, and mineral deposits can insulate the sensor bars, preventing them from reading conductivity accurately. Cleaning the bars inside the drum with rubbing alcohol or a mild abrasive pad often resolves the fault.

  3. 03

    Faulty or damaged humidity sensor

    Part replacement

    The sensor itself can fail due to corrosion, physical damage, or component wear, causing it to send an incorrect signal to the control board. If cleaning does not help, the sensor will need to be tested and likely replaced.

  4. 04

    Damaged sensor wiring or connector

    Part replacement

    A broken wire, loose connector, or chafed harness between the humidity sensor and the control board can interrupt the signal and trigger this error. Inspecting the wiring path for visible damage or loose terminals is part of a thorough diagnosis.

  5. 05

    Control board fault

    Part replacement

    In rare cases, the control board itself may misinterpret or fail to process the sensor signal correctly even when the sensor and wiring are intact. This is the least common cause and should only be considered after the sensor and wiring have been ruled out.

See the test procedure for each cause

Frequently asked questions about Sensor error

What does Sensor error mean on a Electrolux dryer?
The Sensor error code means the dryer has detected a fault in its humidity sensor circuit, which is responsible for measuring moisture levels in the drum during a cycle. It can appear because of a real sensor problem such as dirty or failed sensor bars, or simply because the dryer was run empty or with an already-dry load. Opening the door should clear the message if it was a false trigger. If it persists, the sensor and its wiring need to be inspected.
Will opening the door fix the Sensor error on my Electrolux dryer?
Opening the door will clear the error in many cases, particularly if the dryer was run empty or with dry laundry. After opening the door, load the dryer with a properly damp load and restart the cycle to confirm the error does not return. If the message comes back consistently, a deeper issue with the sensor or its wiring is likely present and will need to be addressed.
Is it safe to keep using my Electrolux dryer when the Sensor error is showing?
The dryer may not operate normally or may not complete drying cycles correctly when this error is active, since the humidity sensor is used to control cycle length. While the error does not typically indicate a fire or safety hazard on its own, continuing to run the appliance without resolving the fault could lead to over-drying or ineffective cycles. It is best to diagnose and correct the issue before regular use.
How much does it cost to fix the Sensor error on an Electrolux dryer?
If the fix is simply cleaning the sensor bars, there is little to no parts cost involved. A replacement humidity sensor typically costs in the range of $15 to $50 for the part alone, depending on the specific model. If professional labor is needed, total repair costs including diagnosis and installation can range from $80 to $200 or more. Wiring repairs or a control board replacement would add to that estimate.
Will resetting my Electrolux dryer clear the Sensor error permanently?
A reset or simply opening and closing the door may clear the error temporarily, but it will return if an underlying problem with the humidity sensor exists. If the error was caused by running the dryer empty or with dry clothes, the reset will effectively resolve it for good. For a recurring Sensor error, the sensor bars should be cleaned and the sensor and wiring inspected to find the root cause before the fault is considered resolved.

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass