Without the model number of your Frigidaire stove, it is difficult to accurately interpret the F10 fault code. On most Frigidaire ranges, the F10 indicates that the control detects a runaway temperature in the oven. If the oven is overheating, this can be caused by a stuck relay or contact on the oven electronic control board. If this fault code appears when the oven is at room temperature, then the failure points to a failed oven temperature sensor probe circuit or a bad electronic oven control board. If you are able to unplug the range and access the oven temperature sensor, you can check the resistance of this component with a volt/ohm meter. At room temperature, most Frigidaire oven temperature sensor probes will measure about 1100 ohms at room temperature. If your probe measures 2500 ohms or higher, then a defective temperature sensor is causing this problem. If the sensor is okay, then I recommend reconnecting the sensor and checking the resistance through the wiring harness connection directly at the electronic oven control board (with the range still unplugged). The sensor is oven connected through violet wires on Frigidaire ranges. If the resistance is normal through the wires that plug into the control board, then it is likely that you will need to replace the control board. This information is based on the common Frigidaire range models. Your range may be different. If you need more help, resubmit your question with additional details and the full model number of your Frigidaire range.