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Error code reference

Maytag Microwave Error Code F2 E1

Stuck/shorted key.

Maytag codesMaytag microwave codes

Stuck/shorted key.

First step from the service manual

Check that connector CN11 firmly connects user interface to the keypad; if connected, replace keypad.

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

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What F2 E1 means on a Maytag microwave

The F2 E1 error code on a Maytag microwave indicates that the control board has detected a stuck or shorted key on the keypad. This means one or more of the membrane switch contacts within the keypad is either physically held closed or has developed an internal short circuit, causing the control system to register a constant input signal from that key. The user interface keypad communicates with the main control board through a dedicated connector, identified as CN11, and any fault in this signal path will trigger the F2 E1 code.

The keypad itself is a membrane-type switch assembly consisting of flexible conductive layers that make contact when a key is pressed. Over time, moisture intrusion, physical damage, or normal wear can cause these layers to fuse together or develop a conductive short at a specific key location. When this happens, the microwave interprets the condition as a continuously pressed button and halts normal operation to prevent unintended commands from being executed.

Diagnosis should begin at connector CN11, which links the user interface assembly to the keypad. A loose, corroded, or improperly seated connector at this point can cause signal irregularities that mimic a stuck key condition. If reseating CN11 does not resolve the fault, the keypad itself is the most likely failed component and will need to be replaced. The control board is rarely the root cause when this specific code appears.

Source: manufacturer service documentation.

Common causes of F2 E1

  1. 01

    Failed or shorted keypad membrane

    Part replacement

    The flexible membrane layers inside the keypad have fused or shorted at one key position, causing the control board to read a constant keypress. This is the most common cause of F2 E1 and typically requires keypad replacement.

  2. 02

    Loose or disconnected CN11 connector

    Wiring / connection

    The connector CN11 linking the user interface to the keypad may be loose, unseated, or making poor contact. Firmly reseating this connector is the recommended first diagnostic step before replacing any parts.

  3. 03

    Moisture or liquid damage to keypad

    Part replacement

    Spills or steam exposure can seep behind the keypad membrane and create a conductive bridge across key contacts, simulating a stuck key. Inspect the keypad surface for signs of moisture intrusion or discoloration.

  4. 04

    Physical damage to keypad surface

    Part replacement

    A warped, cracked, or physically deformed keypad can press one or more membrane contacts closed permanently. Check the keypad surface for visible damage, bubbling, or deformation.

  5. 05

    Corroded or damaged CN11 connector pins

    Wiring / connection

    Corrosion or bent pins at the CN11 connector can cause signal interference that registers as a shorted key even if the keypad itself is intact. Inspect the connector pins closely before concluding the keypad needs replacement.

See the test procedure for each cause

Frequently asked questions about F2 E1

What does F2 E1 mean on a Maytag microwave?
F2 E1 indicates that the control board has detected a stuck or shorted key on the keypad. The microwave interprets one of the membrane switch contacts as being continuously pressed, which prevents normal operation. This fault is most often caused by a failed keypad membrane or a loose connection at connector CN11.
Can I fix the F2 E1 error myself without replacing parts?
The first step is to check that connector CN11, which links the user interface to the keypad, is firmly seated. Unplugging the microwave, reseating this connector, and restoring power may clear the code if a loose connection was the cause. If the error returns, the keypad itself will need to be replaced.
Will resetting the microwave clear the F2 E1 error code?
Unplugging the microwave for a few minutes may temporarily clear the code, but if the underlying keypad fault persists, the error will return when power is restored. A reset is useful for confirming whether the fault is intermittent, but it does not repair a shorted or mechanically stuck key contact.
Is it safe to use my Maytag microwave while it shows the F2 E1 code?
It is not recommended to continue using the microwave while F2 E1 is active. A stuck or shorted key could send unintended commands to the control board, potentially causing the microwave to behave unpredictably. Discontinue use until the keypad or connector issue has been resolved.
How much does it cost to repair a Maytag microwave with an F2 E1 error?
If only the keypad needs replacement, parts typically range from $30 to $100 depending on the specific model, with professional labor adding $75 to $150 on top of that. If the repair is a DIY connector reseating with no parts needed, the cost is minimal. Getting the microwave professionally diagnosed first can help confirm whether the fix is a simple connector adjustment or a full keypad replacement.

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