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Error code reference

Maytag Range Error Code F3-2

Lower oven sensor is shorted (below 100 ohms) or open (above 5K ohms).

Maytag codesMaytag range codes

Lower oven sensor is shorted (below 100 ohms) or open (above 5K ohms).

First step from the service manual

Check lower sensor, harness, and connections.

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
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
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What F3-2 means on a Maytag range

The F3-2 error code indicates the control board has measured an out-of-range resistance reading from the lower oven temperature sensor (also called the lower RTD sensor). Specifically, the board detected either a short circuit with resistance below 100 ohms or an open circuit with resistance above 5,000 ohms. Normal sensor resistance at room temperature runs around 1,080 ohms, so either extreme signals a failed sensor, a break in the wiring harness, or a loose connection between the sensor and the control board.

For homeowners, this means your range's control system cannot get an accurate temperature reading from the lower oven cavity. Without reliable temperature data, the oven cannot regulate heat properly. The error may appear during preheating or mid-cycle, and the oven will typically shut down the bake or broil function to prevent overheating or underheating.

Diagnosis starts by inspecting the lower sensor probe, located on the back interior wall of the lower oven cavity, along with the wiring harness that runs from the sensor to the control board. A multimeter check of the sensor's resistance confirms whether the sensor itself has failed or whether the problem is in the wiring or connections.

Source: manufacturer service documentation.

Common causes of F3-2

  1. 01

    Failed lower oven temperature sensor

    Part replacement

    The lower RTD sensor itself has burned out or shorted internally, producing a resistance reading below 100 ohms or above 5,000 ohms. This is the most common cause of F3-2 and the sensor must be replaced.

  2. 02

    Damaged or broken wiring harness

    Part replacement

    The wire harness connecting the lower sensor to the control board can fray, burn, or break, especially near the oven cavity where heat exposure is high. A broken wire causes an open circuit above 5,000 ohms, while a pinched or shorted wire causes resistance below 100 ohms.

  3. 03

    Loose or corroded sensor connector

    Wiring / connection

    The connector pins at the sensor terminal or at the control board can loosen or corrode over time, creating an intermittent or fully open circuit. Reseating or cleaning the connections may resolve the code without replacing any parts.

  4. 04

    Faulty control board

    Part replacement

    If the lower sensor and harness both test within normal resistance range, the control board itself may be misreading the signal due to a failed input circuit. This is the least likely cause and should only be considered after all wiring and sensor checks are completed.

See the test procedure for each cause

Frequently asked questions about F3-2

What does error code F3-2 mean on a Maytag range?
F3-2 means the control board detected an abnormal resistance reading from the lower oven temperature sensor. The sensor read either below 100 ohms (shorted) or above 5,000 ohms (open circuit). This prevents the oven from accurately measuring cavity temperature, so the control board disables the lower oven heating function.
How do I fix the F3-2 error code on my Maytag range?
Start by unplugging the range and locating the lower oven sensor on the back wall of the lower oven cavity. Disconnect the sensor and use a multimeter to measure its resistance across the two terminals. A reading near 1,080 ohms at room temperature is normal. If the reading is below 100 ohms or above 5,000 ohms, replace the sensor. If the sensor reads correctly, inspect the wiring harness and connectors running from the sensor to the control board for damage or loose pins.
Can I still use my Maytag range when the F3-2 code is showing?
The lower oven bake and broil functions will not operate reliably with F3-2 active because the control board cannot monitor oven temperature. Using the oven in this state risks uncontrolled heating or no heat at all. Surface burners on a gas or electric range are typically unaffected and can still be used safely while you arrange for repair.
How much does it cost to fix a Maytag range F3-2 error?
A replacement lower oven temperature sensor typically costs between $20 and $60 for the part, and most homeowners can replace it with a screwdriver in under 30 minutes. If the wiring harness is damaged, a harness assembly costs roughly $30 to $80. If a service technician is needed, expect an additional $100 to $200 in labor depending on your area. A control board replacement, which is the least likely fix, can run $150 to $350 for the part alone.
How do I test the lower oven sensor to confirm it is causing F3-2?
Unplug the range, then remove the two screws holding the lower sensor probe to the back wall of the oven interior. Pull the sensor forward slightly to access the connector and disconnect it. Set a multimeter to measure ohms and touch the probes to the two sensor terminals. At room temperature, a working sensor reads approximately 1,080 ohms. A reading under 100 ohms confirms a short, and a reading over 5,000 ohms or an open-line reading confirms the sensor has failed and needs replacement.

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