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Error code reference

Maytag Oven Error Code 3d31

Meat probe open (single cavity or upper oven).

Maytag codesMaytag oven codes

Meat probe open (single cavity or upper oven).

First step from the service manual

Control disables element and convection element. Check when probe cook is programmed; 10 sec debounce.

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

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What 3d31 means on a Maytag oven

Error code 3d31 on a Maytag oven indicates that the meat probe circuit is open in the single cavity or upper oven. The meat probe is a temperature-sensing device that plugs into a dedicated jack inside the oven cavity, allowing the control board to monitor the internal temperature of food during a probe cook cycle. An open circuit condition means the control board is detecting infinite or out-of-range resistance through the probe circuit, which prevents accurate temperature sensing.

When this fault is detected, the control board immediately disables both the bake/broil element and the convection element as a safety measure. The code is only triggered when a probe cook cycle has been actively programmed, and the control applies a 10-second debounce period before registering the fault, meaning the open condition must persist for at least 10 continuous seconds before the code is set. This debounce logic helps filter out momentary connection interruptions from brief probe movement.

The most common causes include a damaged or broken probe, a poor connection at the oven cavity jack, or a wiring fault between the jack and the control board. The probe itself contains a thermistor that changes resistance with temperature, and any break in the probe's internal wiring or sensor element will produce an open circuit reading. Damage to the wiring harness between the probe jack and the control board can produce the same fault.

Source: manufacturer service documentation.

Common causes of 3d31

  1. 01

    Damaged or faulty meat probe

    Part replacement

    The probe's internal thermistor or wiring can break from repeated heat exposure or physical damage. A broken probe will show an open circuit to the control board and trigger this code.

  2. 02

    Loose or dirty probe connection at the jack

    Wiring / connection

    The probe must be fully seated in the oven cavity jack to maintain a good electrical connection. Grease buildup or a partially inserted probe can cause an intermittent or open circuit.

  3. 03

    Faulty probe jack inside the oven cavity

    Part replacement

    The receptacle jack where the probe plugs into the oven wall can become corroded, burned, or damaged over time. Inspect the jack for visible damage or discoloration, which would indicate it needs replacement.

  4. 04

    Wiring harness fault between probe jack and control board

    Part replacement

    A broken wire, loose connector, or heat-damaged harness segment between the probe jack and the control board will interrupt the circuit and produce the same open condition.

  5. 05

    Control board failure

    Part replacement

    If the probe, jack, and wiring harness all test correctly, the control board's probe input circuit may have failed. This is the least common cause and should be diagnosed only after ruling out the other components.

See the test procedure for each cause

Frequently asked questions about 3d31

What does 3d31 mean on a Maytag oven?
Code 3d31 means the oven's control board has detected an open circuit in the meat probe circuit for the single cavity or upper oven. This fault only activates when a probe cook cycle is programmed and persists for at least 10 seconds. When the fault is set, the control board disables both the bake element and the convection element. The most likely cause is a damaged probe or a poor connection at the probe jack.
Can I fix error code 3d31 myself?
In many cases, yes. Start by removing the meat probe from the oven jack, cleaning the jack contacts, and firmly reinserting the probe to ensure a solid connection. If the code returns, test the probe for continuity with a multimeter. A probe that shows no continuity needs to be replaced, which is a straightforward part swap that most DIYers can handle.
Is it safe to use my Maytag oven while error 3d31 is showing?
The oven disables the heating elements when this code is active during a probe cook cycle, so normal baking or broiling without a probe should not be affected. However, you should not attempt to use the probe cook function until the fault is resolved, as the oven cannot accurately monitor food temperature in that mode. Discontinue probe cooking until the probe or its circuit is repaired.
Will resetting the oven clear error code 3d31?
A reset may temporarily clear the code, but it will return as soon as a probe cook cycle is programmed again and the open circuit condition is still present. The 10-second debounce means the code will reappear quickly if the underlying problem is not fixed. A reset is useful for confirming the fault is active, but it does not address the root cause.
How much does it cost to repair a Maytag oven showing code 3d31?
If only the meat probe needs replacement, costs typically range from $20 to $60 for the part, plus any labor if you hire a technician. Probe jack replacement parts generally fall in the $30 to $80 range. If the control board is at fault, that repair is significantly more expensive, often ranging from $150 to $400 or more depending on the model and labor rates in your area.

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