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Error code reference

Maytag Range Error Code 1c31

Cancel key circuit problem; A/D reading out of range, disables audible for affected key depression.

Maytag codesMaytag range codes

Cancel key circuit problem; A/D reading out of range, disables audible for affected key depression.

First step from the service manual

Check cancel key input and A/D circuit.

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

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What 1c31 means on a Maytag range

Error code 1c31 indicates the control board has detected an improper resistance value or signal from the cancel key circuit on the upper or single oven cavity. The control board continuously monitors key circuits for expected voltage or resistance readings. When the cancel key returns a value outside the acceptable range, the board flags this fault. This can point to a stuck or shorted cancel key, a break in the wiring between the keypad membrane and the control board, or a failed control board itself.

For homeowners, this means the oven's control system detected something wrong with the Cancel button on your range. The Cancel key is part of a membrane keypad that sends electrical signals to the main control board. If the board reads a signal from that key when it shouldn't, or reads no signal when it should, it triggers this code. In many cases the oven will stop responding normally and may lock out operation until the fault is cleared. Unplugging the range for a few minutes and restarting can clear a temporary glitch, but if the code returns, a physical component will need inspection or replacement.

Source: manufacturer service documentation.

Common causes of 1c31

  1. 01

    Faulty or stuck cancel key on membrane keypad

    Part replacement

    The cancel key membrane can tear, short internally, or become stuck in a partially pressed position, causing the circuit to return an improper resistance value to the control board. This is the most common cause of this specific code.

  2. 02

    Damaged or disconnected wiring harness between keypad and control board

    Wiring / connection

    The ribbon cable or wiring harness connecting the membrane keypad to the control board can develop broken conductors, loose connector pins, or corrosion, resulting in an incorrect signal reading on the cancel key circuit.

  3. 03

    Failed membrane keypad assembly

    Part replacement

    The entire keypad membrane can fail due to age, heat exposure, or moisture intrusion, causing multiple key circuits including the cancel key to read improper values. Replacing the keypad assembly resolves this.

  4. 04

    Defective main control board

    Part replacement

    If the cancel key, wiring harness, and keypad membrane all test correctly, the main control board itself may have a failed input circuit that is misreading the cancel key signal. This is the least likely cause and should only be replaced after other components are ruled out.

See the test procedure for each cause

Frequently asked questions about 1c31

What does error code 1c31 mean on a Maytag range?
Code 1c31 means the control board detected an improper voltage or resistance value coming from the cancel key circuit on the upper or single oven cavity. The board expects a specific signal range from that key, and something in the cancel key, its wiring, or the keypad membrane is returning a value outside that range. Start by inspecting the cancel key for physical damage and checking the wiring harness connection at both the keypad and the control board.
How do I fix error code 1c31 on my Maytag range?
Begin by unplugging the range for five minutes to reset the control board. If the code returns, check the wiring harness connector between the membrane keypad and the control board for loose or corroded pins. Test continuity through the cancel key circuit. If the cancel key membrane is torn, shorted, or stuck, replace the keypad assembly. If the keypad tests good and wiring is intact, the control board likely needs replacement.
Can I still use my Maytag range while error code 1c31 is active?
A 1c31 code typically indicates the control board cannot confirm proper cancel key function, which means the oven may not respond to control inputs reliably or may refuse to operate at all. Using the range in this condition is not recommended because the control system may not respond correctly to commands, including shutdown commands. Resolve the fault before resuming normal use.
How much does it cost to fix a 1c31 error on a Maytag range?
If the fix is a membrane keypad replacement, parts typically run between $50 and $150 depending on the model, and the repair is manageable for a confident DIYer since it usually involves removing the control panel and unplugging a ribbon cable. If the control board needs replacement, parts can range from $100 to $300 or more. Labor from a technician adds $100 to $200 on top of parts. Diagnosing the cancel key and wiring yourself first can avoid paying for an unnecessary board replacement.
Will resetting my Maytag range clear the 1c31 code?
Unplugging the range for five minutes will clear the code temporarily, and if the fault was caused by a transient electrical glitch the code may not return. However, if there is a physical problem with the cancel key membrane, wiring harness, or control board, the code will reappear after the reset. A reset is a useful first step but not a repair on its own.

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