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Error code reference

KitchenAid Microwave Error Code F2-E3

Key held down too long, or key is shorted.

KitchenAid codesKitchenAid microwave codes
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What the F2-E3 error code actually means

This error means your microwave thinks one of the buttons on the keypad is being held down when it shouldn't be, which is usually caused by a stuck or faulty key. It is a built-in safety feature that stops the oven from responding to bad input signals. Unplugging the microwave and pressing Cancel when you plug it back in may clear it temporarily, but if it keeps coming back, the keypad panel likely needs to be replaced.

Diagnostic procedure

The full F2-E3 procedure

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1
First diagnostic step
Disconnect power or unplug oven, check keypad connector for firm connection. Press CANCEL; if error returns after 60 sec, replace keypad.
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Most common causes of F2-E3

Ranked by how often they cause this code
  1. 1Failed keypad membrane
  2. 2Loose or poorly seated keypad ribbon connector
  3. 3Moisture or grease contamination under the keypad
  4. 4Physically stuck or damaged key
  5. 5Control board input circuit fault

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Questions people ask about F2-E3

What does F2-E3 mean on a KitchenAid microwave?
F2-E3 indicates that the control board has detected a keypad key held in the active state for too long, or that a key contact is shorted. The microwave flags this fault to prevent unintended operation from a stuck or malfunctioning key. The fault originates in the keypad membrane or its connection to the control board in most cases.
How do I fix the F2-E3 error on my KitchenAid microwave?
Start by unplugging the microwave and checking that the keypad ribbon connector is firmly seated on the control board. Restore power and press Cancel. If the error returns within 60 seconds, the keypad membrane needs to be replaced. If a new keypad does not resolve the fault, the control board may also need replacement.
How much does it cost to repair a KitchenAid microwave F2-E3 error?
If the repair requires only a new keypad membrane, parts typically range from around $30 to $90 depending on the model, plus labor if a technician is performing the repair. If the control board is also at fault, total repair costs including parts and labor can range from $150 to $350 or more. Getting a repair estimate before proceeding is recommended, especially on older units.
Will resetting the microwave clear the F2-E3 error?
Disconnecting power and pressing Cancel after restoring power can temporarily clear the F2-E3 code. However, if the underlying keypad fault is still present, the error will return within about 60 seconds. A reset alone is not a fix, it is a diagnostic step to determine whether the fault is persistent.
Is it safe to use my KitchenAid microwave while the F2-E3 error is showing?
A persistent F2-E3 fault means the microwave is detecting abnormal input signals from the keypad, which can lead to unpredictable behavior or unintended operation. It is best to avoid using the microwave until the faulty keypad or connection is inspected and repaired.

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