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Error code reference

Maytag Range Error Code F7

Missing AC line cycle detector; displays code (no audible) and resets control to non-cook mode if AC line…

Maytag codesMaytag range codes

Missing AC line cycle detector; displays code (no audible) and resets control to non-cook mode if AC line cycles are missing for one minute sample period.

First step from the service manual

Check AC power supply to range.

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

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What F7 means on a Maytag range

The F7 error code on a Maytag range indicates the Electronic Range Control (ERC) has detected a shorted input key on the control panel keypad for a continuous period of at least 32 seconds. The ERC monitors each key on the touchpad for normal press-and-release behavior. When a key signal stays active beyond the 32-second threshold, the board interprets this as a fault condition and triggers F7. The most direct fix is to replace the ERC if the error persists after a reset.

For homeowners, this code typically means one of the buttons on your oven's control panel is stuck, physically damaged, or electrically shorted in a way that makes the control board think someone is pressing and holding a key for more than half a minute. This can happen from moisture getting under the membrane keypad, a key that is physically jammed, or a failed keypad assembly that is sending a constant signal.

The two components directly involved are the keypad membrane and the ERC itself. The keypad is the more common failure point and is usually the first part to inspect and replace. If swapping the keypad does not clear the fault, the ERC has likely sustained damage from the shorted input and will need replacement.

Source: manufacturer service documentation.

Common causes of F7

  1. 01

    Stuck or shorted touchpad key

    Part replacement

    The membrane keypad can develop an internal short at one key location due to wear, moisture intrusion, or physical damage, causing it to send a continuous input signal to the ERC for more than 32 seconds.

  2. 02

    Moisture or debris under the keypad membrane

    Wiring / connection

    Liquid spills or grease buildup that seeps beneath the touchpad membrane can bridge the contacts at a key position, creating a persistent short that triggers F7.

  3. 03

    Failed or damaged ERC

    Part replacement

    If the keypad membrane tests normal or has already been replaced and F7 continues to appear, the ERC itself may have failed internally and is misreading input signals or generating a false fault.

  4. 04

    Faulty wiring harness between keypad and ERC

    Part replacement

    A pinched, frayed, or corroded wire in the ribbon cable or harness connecting the keypad to the ERC can cause a continuous electrical signal that mimics a stuck key.

See the test procedure for each cause

Frequently asked questions about F7

What does the F7 error code mean on a Maytag range?
F7 means the Electronic Range Control has detected a shorted input key on the control panel keypad for at least 32 seconds. The board interprets a key as being held down continuously, which triggers the fault. This is most commonly caused by a failed touchpad membrane, moisture under the keypad, or a damaged ERC.
How do I fix the F7 error code on my Maytag range?
Start by pressing the OVEN CANCEL pad to clear the code. If F7 returns, disconnect the range from power for 5 minutes and restore it to reset the ERC. If the code comes back again, inspect the touchpad for visible damage, sticky keys, or signs of moisture. A faulty keypad membrane is the most common cause and can be replaced as a separate part. If replacing the keypad does not resolve the issue, the ERC itself will need to be replaced.
Is it safe to use my Maytag range while the F7 code is showing?
You should not use the range while F7 is active. A shorted input key means the control board may not reliably accept or process commands, which can lead to unintended oven behavior. Disconnect power until the fault is diagnosed and resolved.
How much does it cost to fix an F7 error on a Maytag range?
A replacement keypad membrane typically costs between $30 and $80 for the part, and is a moderate DIY repair involving removal of the control panel and disconnecting a ribbon cable. A replacement ERC is more expensive, usually $100 to $250 depending on the model, and requires more careful handling to avoid damage to surrounding components. Professional labor will add $100 to $200 on top of parts costs. Attempting the keypad replacement yourself first is reasonable before committing to the higher cost of an ERC.
Why does my Maytag range keep showing F7 after I reset it?
If F7 returns after pressing OVEN CANCEL or cycling power, the underlying short is still present. A recurring F7 points to a physically damaged or internally shorted keypad membrane that needs replacement. If you have already replaced the keypad and the code still returns, the ERC has likely been damaged by the prolonged short and will also need to be replaced.

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