Amana Range Error Code F3

F3 on an Amana range means the control board detected an open circuit in the oven temperature sensor circuit. The sensor, also called an RTD probe, or its wiring has lost continuity, so the board cannot read oven temperature. The oven will not operate normally until the fault is resolved.

The oven function will be disabled or unreliable while F3 is active because the control board cannot monitor oven temperature safely. Using the oven in this condition risks uncontrolled overheating. Surface burners on a gas or electric range may still function depending on the model, but the oven should not be used until the sensor circuit is repaired.

Unplug the range, then remove the two screws holding the sensor probe to the back wall inside the oven cavity. Pull the sensor forward enough to disconnect its wiring harness. Set a multimeter to resistance (ohms) and probe both sensor terminals. At room temperature, a good sensor reads approximately 1080 ohms. An open line (OL) or infinite reading confirms the sensor has failed and needs replacement.

Start by unplugging the range and locating the oven temperature sensor at the back wall of the oven cavity. Disconnect the sensor and measure its resistance with a multimeter; it should read around 1080 ohms at room temperature. If resistance is infinite or far outside spec, replace the sensor. If the sensor tests good, trace the wiring harness back to the control board and check for breaks, burns, or loose connectors.

An oven temperature sensor for an Amana range typically costs between $20 and $60 for the part, and replacing it is a DIY-friendly repair that requires only a screwdriver and multimeter. If a wiring harness needs replacement, parts run $30 to $80. If the control board is the cause, parts cost $100 to $250 or more, and professional labor adds $100 to $200 depending on your area.