mypros+
Error code reference

Maytag Microwave Error Code SE

Keypad shorted for 10 seconds or longer, indicating sticky keypad(s).

Maytag codesMaytag microwave codes

Keypad shorted for 10 seconds or longer, indicating sticky keypad(s).

First step from the service manual

Check for sticky keypad(s); replace key pad membrane if necessary.

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 SE.

  • 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 SE means on a Maytag microwave

The SE error code on a Maytag microwave indicates the control board has detected a keypad short lasting 10 seconds or longer. The board continuously monitors the keypad membrane for input signals. When one or more keys register as continuously pressed for an extended period, the board interprets this as a shorted keypad condition and throws the SE code to prevent unintended operation. This is a protective response tied directly to the keypad membrane assembly.

For homeowners, think of this as the microwave detecting a stuck button. If a key on the control panel gets stuck down, either from food residue, liquid spills, or a physically damaged membrane, the microwave reads that button as being held for 10 or more seconds. At that point, it stops normal operation and displays SE to alert you something is wrong with the keypad.

The primary component involved is the keypad membrane, which is the thin, flexible layer sitting beneath the visible touchpad buttons. This membrane contains conductive traces that complete a circuit when you press a button. When sticky residue, moisture, or physical damage causes a trace to stay in contact continuously, the short condition triggers. In many cases, cleaning the keypad surface resolves the code. If the membrane itself is damaged, it requires replacement.

Source: manufacturer service documentation.

Common causes of SE

  1. 01

    Sticky keypad from food or liquid residue

    Wiring / connection

    Spilled liquids or food debris can work beneath the keypad surface and cause one or more keys to stick in the pressed position, creating a continuous signal the control board reads as a short. Cleaning the keypad area thoroughly often resolves this without replacing any parts.

  2. 02

    Damaged or worn keypad membrane

    Part replacement

    The membrane beneath the touchpad surface can develop internal shorts due to wear, age, or moisture intrusion, causing one or more conductive traces to stay in contact even without a key being physically pressed. A damaged membrane must be replaced to clear the SE code permanently.

  3. 03

    Moisture trapped behind the keypad panel

    Wiring / connection

    Condensation or liquid that has seeped behind the control panel face can bridge the conductive contacts in the keypad membrane, mimicking a pressed key. Allowing the unit to dry out may help, but if moisture has corroded the membrane, replacement is necessary.

  4. 04

    Faulty control board misreading keypad input

    Part replacement

    In less common cases, the control board itself may incorrectly interpret keypad signals and generate an SE code even when the membrane is functioning normally. This is typically a secondary cause, considered only after ruling out keypad membrane issues.

See the test procedure for each cause

Frequently asked questions about SE

What does the SE error code mean on a Maytag microwave?
The SE code means the microwave's control board detected a keypad short lasting 10 seconds or longer. One or more keys on the keypad membrane are registering as continuously pressed, which triggers this error. The most common cause is a sticky key from spills or food residue, though a physically damaged membrane can also cause it.
How do I fix the SE error code on my Maytag microwave?
Start by unplugging the microwave for one to two minutes to reset it, then inspect the keypad surface for any sticky or depressed keys. Clean the keypad thoroughly with a damp cloth, paying attention to the edges and seams where debris collects. If the SE code returns after cleaning and the keypad still feels stuck, the keypad membrane needs to be replaced. Membrane replacement is a moderate DIY repair that involves removing the outer panel to access and swap the membrane assembly.
Is it safe to use my Maytag microwave while the SE error code is showing?
No. When the SE code is active, the microwave has typically locked out normal operation to prevent unintended starts from a shorted keypad. Attempting to force operation with a shorted keypad is not safe, as the microwave could start without a deliberate command. Resolve the cause of the SE code before resuming use.
How much does it cost to fix the SE error on a Maytag microwave?
If cleaning the keypad resolves the issue, there is no parts cost. A replacement keypad membrane for a Maytag microwave typically costs between $20 and $60 depending on the model, and replacing it yourself keeps the total repair cost low. If the control board is also at fault, board replacement can cost $80 to $150 in parts, at which point weighing the repair cost against the age of the unit makes sense.
Can I replace the keypad membrane on a Maytag microwave myself to fix the SE code?
Yes, keypad membrane replacement is manageable for most DIYers with basic tools. The process involves unplugging the unit, removing screws from the outer panel or control panel housing, carefully separating the membrane from the control panel, and installing the new membrane. Using the exact part number for your Maytag model is essential since membranes are model-specific. If you are uncomfortable working near the capacitor inside the microwave cabinet, limiting your work to the outer control panel area reduces risk.

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