KitchenAid Range Error Code F2

The F2 error code on a KitchenAid range indicates an open circuit in the oven temperature sensor circuit. The electronic control module continuously monitors the resistance signal from the oven temperature sensor (also called an RTD sensor) to track cavity temperature. When the module detects an open circuit rather than the expected resistance signal, it interprets this as a sensor failure and triggers the F2 fault. The control responds by sounding an audible alarm and disabling all cook modes to prevent the oven from operating without verified temperature feedback.

The oven temperature sensor is a resistive probe mounted inside the oven cavity, typically at the rear wall. Its resistance changes predictably with temperature, allowing the control board to calculate actual oven temperature. An open circuit means the signal path is completely broken somewhere between the sensor probe and the 8-pin connector on the electronic module. This break can occur at the sensor itself, along the wire harness, or at either connector point in the circuit.

Diagnosis begins at the wiring connections. The harness connector at the sensor and the 8-pin connector at the electronic module should both be inspected for corrosion, loose terminals, or physical damage. If both connections are secure and show no visible damage, the sensor itself is the most likely failed component and should be replaced. A properly functioning sensor will show a measurable resistance value at room temperature, so continuity testing across the sensor terminals will confirm whether it has failed open.