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Error code reference

Kenmore Dishwasher Error Code F1E1

Control detected K400 pilot relay stuck closed.

Kenmore codesKenmore dishwasher codes

Control detected K400 pilot relay stuck closed.

First step from the service manual

Unplug dishwasher or disconnect power. Check all loads on K400 pilot relay for shorts. Replace control and all shorted components.

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

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What F1E1 means on a Kenmore dishwasher

The F1E1 error code on a Kenmore dishwasher indicates that the main control board has detected the K400 pilot relay in a stuck-closed condition. A pilot relay is a small switching component on the control board that opens and closes to send power to various loads within the dishwasher. When the control detects that the K400 relay has failed in the closed position, meaning it cannot open to cut power to its associated load, the board logs this fault to prevent unsafe or unintended operation.

The K400 pilot relay is responsible for controlling one or more electrical loads in the dishwasher's system. A relay stuck in the closed state means current continues to flow to that load even when the control is commanding it to stop. This condition can result from a failed relay on the control board itself, or from a short circuit in one of the components the relay powers. A shorted motor, heating element, wiring harness, or solenoid can draw excessive current that damages the relay contacts and causes them to weld together.

Diagnosis requires disconnecting power to the unit completely before inspecting any components. All loads connected to the K400 relay circuit should be tested for short circuits. If a shorted component is found, it must be replaced along with the control board, since the relay contacts are integrated into the board and are not serviceable separately. Replacing only the control without addressing a shorted load will likely result in the same failure recurring.

Source: manufacturer service documentation.

Common causes of F1E1

  1. 01

    Failed K400 relay on control board

    Part replacement

    The relay contacts on the control board can weld together due to electrical stress, causing the relay to remain closed permanently. This requires replacing the control board.

  2. 02

    Shorted wash motor or drain motor

    Part replacement

    A short circuit in a motor connected to the K400 relay circuit can draw excessive current that damages the relay. Test motor windings for shorts to ground using a multimeter.

  3. 03

    Shorted heating element

    Part replacement

    If the heating element has developed a short, it can overload the relay circuit. Check the element for continuity and shorts before replacing the control board.

  4. 04

    Shorted wiring harness

    Part replacement

    Damaged insulation or pinched wiring in the harness connected to loads on the K400 relay circuit can create a short to ground. Inspect the harness routing for visible damage or burn marks.

  5. 05

    Shorted solenoid or valve

    Part replacement

    A water inlet valve or diverter solenoid with a shorted coil can cause excess current draw on the relay circuit. Test solenoid coils for resistance and shorts during diagnosis.

See the test procedure for each cause

Frequently asked questions about F1E1

What does F1E1 mean on a Kenmore dishwasher?
F1E1 means the control board has detected that the K400 pilot relay is stuck in the closed position and cannot open. This relay controls one or more electrical loads inside the dishwasher. The fault can originate from a failed relay on the control board itself or from a shorted component that damaged the relay contacts. The dishwasher will not operate normally until the fault is resolved.
Can I fix the F1E1 error myself?
Diagnosing and repairing F1E1 requires disconnecting power, testing all loads on the K400 relay circuit for short circuits with a multimeter, and replacing both the control board and any shorted components. This is within the skill range of experienced DIYers comfortable working with appliance electronics. However, because it involves the control board and potentially multiple components, many homeowners prefer to hire a technician.
Is it safe to use my dishwasher when F1E1 is displayed?
No, you should not attempt to run the dishwasher while F1E1 is active. A stuck-closed relay means a load may be receiving power unintentionally, which presents a risk of overheating or electrical damage. Disconnect power to the unit until the fault has been diagnosed and all shorted components have been replaced.
How much does it cost to repair a Kenmore dishwasher F1E1 error?
The cost depends on which components are shorted in addition to the control board. A replacement control board typically costs in the range of $100 to $250 for parts alone. If a motor, heating element, or valve is also shorted and needs replacement, total parts costs could range from $150 to $400 or more. Adding professional labor will increase the total repair cost.
Will resetting the dishwasher clear the F1E1 error?
Resetting the dishwasher by disconnecting power may temporarily clear the displayed code, but it will not resolve the underlying hardware fault. The K400 relay is physically stuck closed due to a component failure, and the error will return as soon as the control runs its diagnostics again. A proper repair requires replacing the faulty control board and any shorted loads on the relay circuit.

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