Maytag Range Error Code 3d11

Code 3d11 means the control board detected an open circuit in the upper or single oven cavity temperature sensor, meaning the sensor's resistance reads as infinite ohms. The board has lost all temperature feedback from that oven cavity. The most common causes are a failed sensor probe or a broken wire in the harness connecting the sensor to the board.

You should not use the oven portion of the range while 3d11 is active. Without a working temperature sensor, the control board cannot regulate oven temperature, which creates a real risk of overheating, fire, or food safety issues. Depending on your model, the cooktop surface burners may still operate normally and can typically be used while the oven fault is present, but verify this in your model's documentation.

Unplug the range from power. Locate the temperature sensor probe mounted on the back wall inside the oven cavity, and disconnect it at its wiring harness connector. Set a multimeter to the ohms setting and probe the two terminals on the sensor side. At room temperature, a good sensor reads approximately 1,000 to 1,100 ohms. If your meter shows infinite resistance or OL, the sensor is open and needs to be replaced. If the sensor reads correctly, the problem is in the wiring or connectors between the sensor and the control board.

Start by unplugging the range and using a multimeter to measure resistance across the oven temperature sensor terminals. A working sensor typically reads around 1,000 to 1,100 ohms at room temperature; an open or failed sensor reads infinite (OL). If the sensor reads infinite, replace it. If the sensor reads correctly, trace the wiring harness from the sensor to the control board and check for breaks, burns, or loose connectors. If wiring and sensor are both good, the control board may need replacement.

If the oven temperature sensor is the cause, the part typically costs between $20 and $60 depending on the model, and replacing it is a manageable DIY repair requiring only a screwdriver and a multimeter. Professional labor to diagnose and replace a sensor usually adds $100 to $200. If the control board has failed, the board itself can cost $150 to $350 or more, making professional diagnosis advisable before committing to that repair.