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Error code reference

Kenmore Dryer Error Code F-46

Motor control detects an over-current or an over-torque condition.

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Motor control detects an over-current or an over-torque condition.

First step from the service manual

See TEST #3b.

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

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What F-46 means on a Kenmore dryer

The F-46 error code on a Kenmore dryer indicates that the motor control board has detected either an over-current or an over-torque condition in the drive motor circuit. The motor control module continuously monitors the electrical current being drawn by the drive motor. When that current exceeds the normal operating threshold, or when the motor experiences excessive mechanical resistance that causes it to draw more torque than expected, the control board triggers F-46 and halts operation to prevent component damage or a potential fire hazard.

The most common root causes fall into two categories: electrical faults within the motor or its control circuitry, and mechanical restrictions that overload the motor. On the mechanical side, a seized drum bearing, worn drum glides, or a failed idler pulley can create enough drag to force the motor to draw abnormally high current. A clogged blower wheel can produce the same effect by increasing the load on the motor shaft. On the electrical side, a failing drive motor with shorted windings will draw excess current even under normal mechanical load, and a faulty motor control board may misread current levels or fail to regulate power delivery properly.

Diagnostic work for F-46 begins with TEST #3b as specified in the diagnostic procedure for this model. This test is designed to isolate whether the fault originates in the motor itself, the wiring harness between the motor and control board, or the motor control board. Technicians should inspect the motor wiring for chafed insulation or loose connections, check for free rotation of the drum by hand, and verify blower wheel clearance before condemning the motor or control board.

Source: manufacturer service documentation.

Common causes of F-46

  1. 01

    Seized or worn drum support components

    Part replacement

    Worn drum glides, a failed rear drum bearing, or a seized idler pulley create mechanical drag that forces the motor to draw excessive current. Manually rotating the drum with the dryer unplugged will reveal unusual stiffness or grinding resistance.

  2. 02

    Clogged or obstructed blower wheel

    Wiring / connection

    Lint buildup or a foreign object lodged in the blower wheel increases the rotational load on the motor shaft, triggering an over-torque condition. Inspecting the blower wheel housing for debris is an early diagnostic step.

  3. 03

    Failing drive motor with shorted windings

    Part replacement

    A motor with internally shorted windings draws abnormally high current even under a normal mechanical load. This condition typically worsens over time and may be accompanied by a burning smell or humming before full failure.

  4. 04

    Wiring harness fault between motor and control board

    Wiring / connection

    Chafed, pinched, or corroded wiring in the harness connecting the drive motor to the motor control board can cause erroneous current readings or intermittent short circuits. A visual inspection and continuity check of the harness connectors will help identify this fault.

  5. 05

    Faulty motor control board

    Part replacement

    If the motor, mechanical components, and wiring all test within acceptable parameters, the motor control board itself may be misreading current levels or failing to regulate power output correctly. The control board should be considered after other causes are ruled out.

See the test procedure for each cause

Frequently asked questions about F-46

What does F-46 mean on a Kenmore dryer?
F-46 means the motor control board has detected an over-current or over-torque condition in the drive motor circuit. The dryer shuts down automatically to protect the motor and prevent a potential safety hazard. The fault can originate from a mechanical restriction in the drum or blower system, a failing motor, a wiring problem, or a defective motor control board. Proper diagnosis requires following the TEST #3b procedure to isolate the specific component at fault.
Can I fix a Kenmore dryer F-46 error myself?
Some causes of F-46 are accessible to a knowledgeable DIYer, such as clearing a clogged blower wheel or inspecting the drum for free rotation after unplugging the dryer. However, diagnosing whether the fault lies in the motor windings, the wiring harness, or the motor control board requires electrical testing tools and familiarity with appliance circuits. If you are not comfortable working with wiring or reading electrical test results, a qualified appliance technician is the safer choice.
Is it safe to keep using my dryer when F-46 appears?
No, you should not continue running the dryer while F-46 is active. The error indicates the motor is drawing abnormal current, which can generate excess heat and create a fire risk. The dryer's automatic shutdown is a protective response, and continuing to reset and run the appliance without addressing the underlying fault can cause further damage to the motor or control board.
How much does it cost to repair a Kenmore dryer F-46 error?
Repair costs vary depending on the failed component. Clearing a blower obstruction may cost nothing beyond your time, while replacing drum glides or an idler pulley typically runs in the range of $30 to $80 in parts. A replacement drive motor generally costs between $80 and $200 in parts, and a new motor control board can range from $100 to $250 or more. Add labor costs if you hire a technician, which commonly range from $75 to $150 per hour depending on your area.
Will resetting the dryer clear the F-46 error code?
Resetting the dryer by unplugging it for a few minutes may temporarily clear the F-46 code, but the error will return if the underlying cause has not been corrected. Because the motor control board triggers F-46 in response to an actual electrical or mechanical condition, a reset alone does not fix the problem. Repeated resets without diagnosis can allow the fault to worsen and may result in more extensive damage to the motor or control board.

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