mypros+
Error code reference

Maytag Microwave Error Code F2 E3

Keypad hardware failure.

Maytag codesMaytag microwave codes

Keypad hardware failure.

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.

MyPros+ Max

Get the full diagnostic procedure for F2 E3.

  • 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 F2 E3 means on a Maytag microwave

The F2 E3 error code on a Maytag microwave indicates a keypad hardware failure. This code is generated when the control board detects a fault in the keypad assembly itself, meaning the physical membrane or keypad matrix is not functioning as expected. The keypad is the touch-sensitive input panel that allows the user to select cooking times, power levels, and other functions. When this component fails, the control board cannot reliably read user inputs, triggering the F2 E3 fault.

The first point of investigation is connector CN11, which is the specific connector that links the user interface board to the keypad assembly. A loose, corroded, or improperly seated CN11 connector can interrupt the communication path between these two components, mimicking a hardware failure even when the keypad itself is intact. Moisture intrusion, physical stress on the wiring harness, or vibration over time can cause this connector to work loose from its socket.

If CN11 is confirmed to be fully seated and in good condition, the keypad assembly itself is the likely failed component and should be replaced. Keypad failures can result from worn membrane contacts, delamination of the keypad layers, or internal short circuits within the key matrix. These issues are typically not repairable at the component level, making full keypad replacement the standard corrective action.

Source: manufacturer service documentation.

Common causes of F2 E3

  1. 01

    Loose or disconnected CN11 connector

    Wiring / connection

    The CN11 connector links the user interface to the keypad, and if it has worked loose or is not fully seated, the control board will register a keypad hardware fault. Inspect and firmly reseat this connector before assuming the keypad itself has failed.

  2. 02

    Failed keypad membrane

    Part replacement

    The keypad membrane can wear out, delaminate, or develop internal short circuits over time, causing unreliable or no key input signals. This type of failure requires full keypad replacement.

  3. 03

    Moisture or contamination in the keypad

    Part replacement

    Spills or steam exposure can penetrate the keypad membrane and cause intermittent or permanent contact failures within the key matrix. If visible moisture or residue is present around the keypad area, this is a likely contributing factor.

  4. 04

    Damaged wiring harness between keypad and control board

    Part replacement

    Physical damage, pinching, or wear on the wiring harness connecting the keypad to the user interface board can disrupt communication and trigger this fault code. Inspect the harness for visible damage along its full length.

  5. 05

    Faulty user interface board

    Part replacement

    If the CN11 connector is secure and the keypad replacement does not resolve the error, the user interface board itself may have failed and be misreading the keypad signals. This is a less common but possible cause.

See the test procedure for each cause

Frequently asked questions about F2 E3

What does F2 E3 mean on a Maytag microwave?
F2 E3 on a Maytag microwave indicates a keypad hardware failure. The control board has detected that the keypad assembly is not functioning correctly, preventing the microwave from registering user input. The fault can stem from a loose CN11 connector or a failed keypad membrane. Diagnosis should start by checking the CN11 connector and reseating it if necessary.
Can I fix the F2 E3 error code myself?
A knowledgeable DIYer can attempt to resolve this error by locating and firmly reseating the CN11 connector, which links the user interface to the keypad. If that does not clear the fault, replacing the keypad assembly is the next step. Working inside a microwave does carry electrical risk, so the unit should be unplugged before any internal inspection and caution should be taken due to the high-voltage capacitor inside.
Will resetting my Maytag microwave clear the F2 E3 error?
A power reset by unplugging the microwave for a minute or two may temporarily clear the display, but the F2 E3 error will return if the underlying keypad hardware issue is not corrected. Because this code reflects a physical component failure, a reset alone is not a lasting fix. The CN11 connector should be checked or the keypad replaced to resolve the error permanently.
Is it safe to use my Maytag microwave when it shows F2 E3?
When the F2 E3 code is active, the keypad is not functioning reliably, which means you may not be able to control the microwave properly. Attempting to operate an appliance with a failed input system is not recommended, as you may not have accurate control over cooking settings. It is best to leave the unit unplugged until the fault is diagnosed and repaired.
How much does it cost to fix an F2 E3 error on a Maytag microwave?
Repair costs vary depending on whether the fix is a simple connector reseating or a full keypad replacement. If only the CN11 connector needs reseating, the repair may cost little to nothing beyond a service call fee, typically in the range of $50 to $100. If the keypad assembly requires replacement, parts and labor combined can range from $100 to $250 or more, depending on the specific model and local labor rates.

Related Maytag microwave codes

All Maytag microwave codes
View all 62 Maytag microwave codes

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

Get Started

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