Maytag Washer Error Code 31

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.

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.

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.

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.

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.