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Error code reference

Maytag Range Error Code F1-L

Sensor wire fault

Maytag codesMaytag range codes

Sensor wire fault – open sensor wire detected when an oven is active.

First step from the service manual

Ohm sensor wire end to end to ensure a closed path.

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

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  • Step-by-step tests with expected resistance, voltage, and continuity values
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What F1-L means on a Maytag range

The F1-L error code on a Maytag range indicates the control board has detected that both oven cavities are reading the same temperature for an extended period. This points to a sensor circuit issue, typically involving one or both oven temperature sensors (RTD probes) or the wiring connecting them to the control board. The code is triggered when temperature readings remain static or identical across both ovens long enough for the control to flag it as abnormal behavior, since independent ovens should rarely hold identical readings under normal operating conditions.

For homeowners, this means the electronic system that monitors your oven temperatures has noticed something unusual. Each oven has its own temperature sensor, a small probe inside the oven cavity that tells the control board how hot it is. When both sensors report the same temperature for too long, the range assumes one sensor may be stuck, shorted, or reading incorrectly. This does not necessarily mean your oven has failed completely, but it does mean the temperature regulation may not be accurate, which can affect cooking results and safety.

The first diagnostic step is verifying that each oven temperature sensor is functioning correctly by checking its resistance with a multimeter. A properly working oven sensor typically reads around 1080 ohms at room temperature.

Source: manufacturer service documentation.

Common causes of F1-L

  1. 01

    Faulty oven temperature sensor (RTD probe)

    Part replacement

    One or both oven sensors may have failed internally, causing it to output a fixed or incorrect resistance value that mirrors the other sensor's reading. A failed sensor will not change its reading as oven temperature changes.

  2. 02

    Short circuit in sensor wiring harness

    Part replacement

    If the wiring between one oven sensor and the control board has shorted to the other sensor's circuit, both inputs to the control board will read the same value. This can result from pinched wires, heat damage, or a connector that has melted or corroded.

  3. 03

    Loose or corroded sensor connector

    Wiring / connection

    A poor connection at the sensor plug or at the control board connector can cause intermittent or incorrect resistance readings. This may cause one sensor's signal to bleed into the other, producing matching temperature readings.

  4. 04

    Failed control board

    Part replacement

    If both sensors and all wiring check out correctly, the control board itself may have a fault in the sensor input circuitry. A board failure here would cause it to misread or merge the two sensor signals, triggering the F1-L code.

See the test procedure for each cause

Frequently asked questions about F1-L

What does the F1-L error code mean on a Maytag range?
F1-L means the control board has detected that both oven cavities are reporting the same temperature for an unusually long period. Each oven has its own temperature sensor, and when both read identically over time, the control board flags it as an error. This usually points to a faulty sensor, a wiring issue, or a short in the sensor circuit.
How do I fix F1-L on my Maytag range?
Start by testing each oven temperature sensor with a multimeter. Disconnect the sensor and measure its resistance at room temperature. A good sensor reads approximately 1080 ohms. If either sensor reads significantly outside that range or reads the same fixed value regardless of temperature, replace it. If both sensors test good, inspect the wiring harness for pinched wires, melted connectors, or shorts between the two sensor circuits.
Can I still use my Maytag range if F1-L is showing?
Using the range with an active F1-L code is not recommended for cooking that requires precise temperatures, because the control board may not be accurately reading or regulating the oven heat. The surface burners on a gas or electric range are typically unaffected, but the oven itself should be considered unreliable until the sensor issue is resolved. Continuing to use the oven could produce overcooked or undercooked food and may mask a worsening wiring problem.
How much does it cost to fix the F1-L error code on a Maytag range?
An oven temperature sensor (RTD probe) for a Maytag range typically costs between $20 and $60 for the part, making it one of the more affordable repairs if you are comfortable doing it yourself. The sensor plugs into a connector inside the oven cavity and is usually secured by one or two screws. If the problem is the control board, parts can range from $100 to $250 or more, and professional labor adds $75 to $150 per hour depending on your area.
How do I test the oven sensor to diagnose F1-L on a Maytag range?
Disconnect power to the range before starting. Locate the oven temperature sensor at the back of the oven cavity, typically a thin metal probe attached with two screws. Disconnect the sensor's wiring harness and use a multimeter set to resistance (ohms) to measure across the two sensor terminals. At room temperature (around 70 degrees Fahrenheit), a functioning sensor should read close to 1080 ohms. Readings that are much higher, much lower, or read the same as the other sensor strongly suggest a failed probe that needs replacement.

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