Error code reference

Maytag Washer Error Code 31

Model ID Unknown, Default model of 31 used.

Maytag codesMaytag washer codes

Model ID Unknown, Default model of 31 used.

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What 31 means on a Maytag washer

Error code 31 on a Maytag washer indicates that the main control board was unable to read or verify the model ID stored in its memory, so the board defaulted to a generic model configuration identified as model 31. This typically points to a problem with the EEPROM or non-volatile memory on the control board itself, where model-specific parameters are stored. The board detected a mismatch or absence of valid model data during its initialization sequence and substituted a fallback profile to continue operation.

For homeowners, this means the washer's brain could not confirm what model it is, so it is running on a basic default set of instructions rather than the settings specific to your machine. This can cause incorrect cycle behavior, timing issues, or improper water fill levels because the control board may not be applying the correct parameters for your specific washer. The washer may still run cycles, but performance may not be normal.

The root cause is almost always a corrupted or failed control board memory, a control board that was replaced with an incorrectly programmed unit, or a board that lost its configuration data due to a power surge or voltage irregularity. Reprogramming or replacing the control board is the typical resolution path.

Source: manufacturer service documentation.

Common causes of 31

  1. 01

    Corrupted control board EEPROM or memory

    Part replacement

    The control board's onboard memory chip has lost or corrupted the model ID data, triggering the default model 31 fallback. This can happen after a power surge, brownout, or age-related memory failure.

  2. 02

    Incorrectly programmed replacement control board

    Wiring / connection

    If the control board was recently replaced, the new board may not have been programmed with the correct model ID for your specific washer, causing the board to report an unknown model and default to model 31.

  3. 03

    Failed or damaged main control board

    Part replacement

    A control board with broader hardware failure may be unable to read its own stored model data, producing this error as a symptom of a deeper board-level fault that requires full board replacement.

  4. 04

    Power supply voltage irregularity

    Wiring / connection

    An unstable or insufficient power supply to the control board can prevent proper memory initialization at startup, causing the model ID read to fail and triggering the default model assignment.

See the test procedure for each cause

Frequently asked questions about 31

What does error code 31 mean on a Maytag washer?
Error code 31 means the control board could not identify the model ID stored in its memory and defaulted to a generic model 31 configuration. The board is essentially running without your washer's specific settings, which can affect cycle timing, water fill levels, and overall performance. The issue is internal to the control board's memory or programming.
Can I still use my Maytag washer with error code 31 active?
The washer may continue to run cycles while showing code 31, but it is operating on a generic default profile rather than the correct settings for your model. This means wash cycles, spin speeds, and water levels may not perform correctly, and clothes may not be cleaned properly. Using it short-term is unlikely to cause damage, but the underlying control board issue should be addressed to restore accurate operation.
How do I fix error code 31 on a Maytag washer?
Start by performing a hard reset: unplug the washer for five minutes and restore power to see if the error clears. If the code returns, the control board likely has a corrupted or failed memory chip and will need to be reprogrammed or replaced. If a control board was recently installed, verify it was the correct part number and properly programmed for your model. A technician with the ability to flash or reprogram control boards can sometimes restore the model ID without a full replacement.
How much does it cost to fix error code 31 on a Maytag washer?
If the fix requires replacing the main control board, parts typically range from $80 to $250 depending on your specific Maytag model, plus $100 to $200 for labor if you use a technician. If the board only needs reprogramming and a technician has the tools to do it, labor costs alone may apply. A DIY control board replacement is a moderate-difficulty repair, requiring comfort with unplugging wire harnesses and handling circuit boards carefully.
Why did error code 31 appear on my Maytag washer after I replaced the control board?
A newly installed control board that shows code 31 almost always means the replacement board was not programmed with the correct model ID for your specific washer, or the wrong board part number was installed. Verify the part number on the new board matches the one required for your exact model number, found on the label inside the door frame or lid. If the part number is correct, the board may need to be programmed by a technician using Maytag service software.

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