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Error code reference

Amana Washer Error Code 2E

Voltage for motor control bus is over specified limit (diagnostic code 91) or under specified limit…

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Voltage for motor control bus is over specified limit (diagnostic code 91) or under specified limit (diagnostic code 92).

First step from the service manual

Replace motor control board.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What 2E means on a Amana washer

The 2E error code on an Amana washer indicates that the voltage on the motor control bus has moved outside of its specified operating limits. When the washer's control system detects this condition, it logs either diagnostic code 91 (bus voltage over limit) or diagnostic code 92 (bus voltage under limit), depending on the direction of the fault. The motor control bus is the internal DC power rail that the motor control board uses to drive the wash motor. If this voltage climbs too high or drops too low, the board cannot reliably operate the motor, and the fault is triggered to protect the machine.

The motor control board is both the component that monitors this bus voltage and the component that generates it. When the board fails internally, either through a failed capacitor, a damaged IGBT, or a faulty voltage regulation circuit, it can no longer maintain the bus voltage within spec. Because the board is simultaneously the source and the sensor of this fault, the primary diagnostic step is to replace the motor control board. A failed board is the most direct and common cause of this error code.

Power supply issues from the home electrical circuit can also contribute to this fault. Voltage fluctuations, a weak outlet, or a shared circuit under heavy load can cause the incoming AC voltage to drop or spike enough to push the bus voltage out of range. Checking that the washer is on a dedicated, properly grounded 120V outlet with stable voltage is a worthwhile step before or alongside replacing the motor control board.

Source: manufacturer service documentation.

Common causes of 2E

  1. 01

    Failed motor control board

    Part replacement

    The motor control board generates and monitors the motor bus voltage. An internal failure of this board, such as a damaged capacitor or voltage regulation circuit, is the most common cause of the 2E code and the primary repair recommended.

  2. 02

    Unstable incoming line voltage

    Wiring / connection

    A weak, overloaded, or shared electrical circuit can cause the incoming AC voltage to fluctuate beyond the range the motor control board can tolerate. Test the outlet voltage with a multimeter under load to rule this out.

  3. 03

    Loose or corroded wiring connections

    Wiring / connection

    Poor connections between the power supply and the motor control board can create resistance that drops the bus voltage below the specified limit. Inspect all harness connectors to the motor control board for corrosion, looseness, or burn marks.

  4. 04

    Drive motor fault causing load-induced voltage drop

    Part replacement

    A failing or seized drive motor can draw excessive current, pulling the bus voltage down under load. If the motor control board tests normal, inspect the drive motor for mechanical resistance or winding failure.

See the test procedure for each cause

Frequently asked questions about 2E

What does 2E mean on a Amana washer?
The 2E code means the voltage on the motor control bus is outside its specified limits, either too high (diagnostic code 91) or too low (diagnostic code 92). This voltage is what the motor control board uses to power and drive the wash motor. When it goes out of range, the washer stops to prevent damage to the motor or control electronics. The motor control board is the primary suspect when this code appears.
Can I fix the 2E error code myself?
The recommended first step is replacing the motor control board, which is a repair that experienced DIYers can perform by disconnecting power, accessing the board, and swapping the component. Before replacing the board, it is worth checking that the washer is plugged into a stable, dedicated outlet and that all wiring connectors to the board are secure and free of corrosion. If you are not comfortable working with appliance electronics, a qualified technician should handle the replacement.
Is it safe to use my Amana washer when the 2E code is showing?
No, you should not continue running the washer while the 2E code is active. The error indicates the motor control bus voltage is out of range, which means the motor cannot be driven reliably. Running the machine in this condition risks further damage to the motor control board, the drive motor, or other connected components. Disconnect the washer from power until the fault is diagnosed and repaired.
Will resetting the washer clear the 2E error code?
A power cycle or reset may temporarily clear the code from the display, but it will not fix the underlying electrical fault. If the motor control board has failed or the bus voltage is genuinely out of specification, the 2E code will return once the washer attempts to run a cycle. A reset is not a repair and should not be used as a substitute for diagnosing and correcting the root cause.
How much does it cost to repair a 2E error on an Amana washer?
If the repair requires a new motor control board, parts costs typically range from roughly $80 to $200 or more depending on the specific model. If you hire a technician, labor charges will add to that cost, bringing the total repair range to approximately $150 to $350 or higher. Checking the wiring connections and outlet voltage first costs nothing and could resolve the issue without any parts purchase.

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