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Error code reference

Frigidaire Dryer Error Code E11

Checksum error

Frigidaire codesFrigidaire dryer codes

Checksum error — problem with communications or memory did not check, one has become corrupted.

First step from the service manual

Clear code, exit mode and start dryer. If problem persists, replace electronic control.

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

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What E11 means on a Frigidaire dryer

The E11 error code on a Frigidaire dryer indicates a checksum error within the electronic control board. A checksum is a calculated value that the control board uses to verify the integrity of data stored in its memory. When the processor reads data from memory and the resulting checksum does not match the expected value, the board recognizes that the stored data has become corrupted or that a communication error has occurred during data transfer. This self-diagnostic process is designed to catch internal errors before they cause unpredictable or unsafe dryer behavior.

The root cause is almost always traced to the electronic control board itself. Memory corruption can occur due to voltage spikes on the power line, a brief power interruption during a write cycle, or the gradual degradation of onboard memory components over time. Communication failures between the processor and memory chips on the same board can also produce this error. Because the fault is internal to the control board, external wiring or sensors are rarely involved.

The recommended first step is to clear the error code, exit diagnostic mode, and attempt to restart the dryer. A transient voltage event can sometimes cause a one-time checksum mismatch that does not recur after a reset. If the E11 code returns after the dryer is restarted, the electronic control board has a persistent internal fault and will need to be replaced. Continuing to operate the dryer with an unresolved checksum error is not advisable, as the corrupted control logic may produce erratic operation.

Source: manufacturer service documentation.

Common causes of E11

  1. 01

    Electronic control board memory corruption

    Part replacement

    The most likely cause is permanent corruption of the data stored on the control board's memory chips. This is an internal hardware failure that does not resolve with repeated resets and requires board replacement.

  2. 02

    Transient power surge or voltage spike

    Wiring / connection

    A brief power surge can disrupt a memory write cycle and produce a one-time checksum mismatch. If clearing the code and restarting the dryer resolves the issue, a power event was the likely trigger.

  3. 03

    Momentary power interruption

    Wiring / connection

    A short power outage or brown-out during dryer operation can interrupt internal data communication and corrupt memory temporarily. The code may clear after a full power cycle if no permanent damage occurred.

  4. 04

    Degraded onboard memory components

    Part replacement

    Over time, memory chips on the control board can degrade and begin producing read errors. This typically presents as a recurring E11 code that returns consistently after each reset.

  5. 05

    Internal communication failure on control board

    Part replacement

    A failure in the communication pathway between the processor and memory on the control board can prevent accurate data verification. This fault is contained within the board assembly and cannot be repaired at the component level in the field.

See the test procedure for each cause

Frequently asked questions about E11

What does E11 mean on a Frigidaire dryer?
E11 on a Frigidaire dryer indicates a checksum error, meaning the electronic control board detected that its internal memory data is corrupted or that a communication problem occurred during a memory check. The board performs this self-verification to ensure its programming is intact before executing commands. If the stored data does not match the expected checksum value, the board flags the E11 code and may halt normal operation.
Will resetting the dryer clear the E11 error code?
Resetting the dryer by clearing the code and restarting can resolve E11 if the error was caused by a one-time event such as a power surge or brief outage. However, if the code returns after the reset and a fresh start cycle, the control board has a persistent internal fault that will not clear on its own. In that case, resetting will not fix the underlying problem.
How do I fix the E11 error code on a Frigidaire dryer?
Start by clearing the error code through the diagnostic mode, exiting diagnostic mode, and then starting the dryer normally to see if the code returns. If E11 does not come back, monitor the dryer for recurrence. If the code reappears, the electronic control board needs to be replaced, as the internal memory or communication hardware has a fault that cannot be repaired in the field.
Is it safe to run a Frigidaire dryer with an E11 error code?
Running the dryer with an active E11 code is not recommended. A corrupted control board may not execute heating, timing, or safety shutdown functions correctly, which could result in unpredictable operation. If the code cleared after a reset and the dryer is running normally, continued use is lower risk, but the situation should be monitored closely for any return of the error or unusual behavior.
How much does it cost to fix a Frigidaire dryer E11 error?
If the issue requires an electronic control board replacement, parts typically range from around 80 dollars to 200 dollars or more depending on the specific dryer model. Professional labor to diagnose and replace the board generally adds another 100 dollars to 200 dollars to the total repair cost. If the error was caused by a one-time power event and clears with a reset, there may be no parts cost at all.

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