mypros+
Error code reference

Kenmore Dryer Error Code E12

Communication failure.

Kenmore codesKenmore dryer codes

Communication failure.

First step from the service manual

Clear code, exit mode and start dryer. If the error persists, replace the control board.

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 E12.

  • 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 E12 means on a Kenmore dryer

The E12 error code on a Kenmore dryer indicates a communication failure between internal control components. This typically refers to a breakdown in the data signal pathway between the main control board and one or more connected modules or subsystems within the dryer. The control board continuously sends and receives signals to coordinate functions such as motor operation, heating, and sensor feedback. When this communication link is interrupted or corrupted, the dryer cannot reliably execute commands and triggers the E12 fault to alert the user and technician.

Communication failures of this type are commonly caused by loose or damaged wiring harness connections, corrupted control board firmware, or an outright failure of the control board itself. Power fluctuations or brief voltage irregularities can sometimes cause a one-time communication dropout that clears after a reset. However, if the fault is caused by a failing control board, degraded wiring, or a faulty connector, the error will return after clearing.

The recommended first diagnostic step is to clear the error code, exit diagnostic mode, and attempt to restart the dryer under normal operation. If the E12 code returns, the control board is the primary suspect and should be replaced. Because the fault is identified at the control board level, component-level repair of the board is generally not practical, and full board replacement is the standard corrective action.

Source: manufacturer service documentation.

Common causes of E12

  1. 01

    Temporary control board glitch

    Wiring / connection

    A brief power fluctuation or software error can disrupt internal communication without any hardware damage. Clearing the code and restarting the dryer will resolve this if it is the cause.

  2. 02

    Failed main control board

    Part replacement

    If the E12 error returns after clearing, the control board itself has likely failed and can no longer maintain reliable internal communication. Board replacement is the standard fix.

  3. 03

    Loose or damaged wiring harness connection

    Wiring / connection

    Connectors between the control board and other components can loosen over time or sustain damage from heat and vibration. Inspect all harness connections at the control board for corrosion, bent pins, or loose plugs.

  4. 04

    Corrupted control board firmware

    Part replacement

    In some cases a power interruption during a cycle can corrupt the board's operating logic, leading to persistent communication faults. If clearing the code does not resolve the issue, board replacement addresses this as well.

See the test procedure for each cause

Frequently asked questions about E12

What does E12 mean on a Kenmore dryer?
The E12 code on a Kenmore dryer signals a communication failure within the dryer's control system. The main control board has detected that it cannot properly communicate with one or more internal components. This can result from a temporary glitch, a wiring issue, or a failing control board. If the code returns after being cleared, the control board is the most likely cause.
Can I fix the E12 error on my Kenmore dryer myself?
The first step is to clear the error code, exit diagnostic mode, and restart the dryer to see if the fault was a temporary glitch. If the code returns, the repair involves replacing the main control board, which is a task many experienced DIYers can handle with basic tools and the correct replacement part. If you are not comfortable working with appliance electronics, a qualified technician can perform the board replacement.
Will resetting my Kenmore dryer clear the E12 error?
Resetting the dryer by clearing the code is the recommended first diagnostic step and may resolve the error if it was caused by a brief communication dropout or power irregularity. However, if the underlying cause is a failing control board or damaged wiring, the E12 code will return after the reset. A persistent E12 error after resetting points to a hardware problem that requires further repair.
Is it safe to use my Kenmore dryer when it shows an E12 error?
Because E12 indicates a communication failure in the control system, the dryer may not operate reliably or as intended. Running the dryer in this state is not recommended, as the control board may be unable to properly regulate the heating element, motor, or other safety-critical functions. It is best to address the fault before resuming normal use.
How much does it cost to fix an E12 error on a Kenmore dryer?
If the fix requires replacing the main control board, parts costs typically range from around $80 to $250 depending on the specific model, with professional labor adding another $100 to $200 if a technician is hired. If the error is caused by a loose wiring connection that can be reseated without new parts, the repair cost can be minimal. Getting the error to clear with a simple reset costs nothing and should always be tried first.

Related Kenmore dryer codes

All Kenmore dryer codes
View all 105 Kenmore dryer codes

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

Get Started

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