GE F2 error

My double ovens are about 20 years old. I turned on the clean cycle and the F2 error went off. I turned the breakers off. Now every time I turn the breaker back on the F2 shows and makes a beeping noise. I can still cook in the lower oven, but we have to turn the breaker on, hear the beeping through out the cooking and then turn off the breaker when we are done. In January of 2015, I had this same thing fixed by Sears. They replaced ECB and sensor back according to my receipt. This is not under warranty anymore. Is this something that is going to break every year? Should I call a repair man? Should I get new ovens? Oh, and I’m making Thanjsgiving in my house! Hahaha

[SIZE=2]I found this model number JKP27BW2BB, is this what you have?[/SIZE]

I found this on another site:

“The error code “F2” will be displayed along with a beeping sound if the ERC (Electronic Range Control) or “clock” senses a runaway heat condition during the “cook” or the “clean” modes. It could be caused by the oven temperature sensor, by the ERC or by the wire harness between the oven temperature sensor and the ERC. If the error code “F2” is displayed in the “cook” or “clean” modes only, then the problem is a bad oven temperature sensor or its wire harness. If the error code “F2” is displayed in the time of the day mode also, then most likely a problem is the bad ERC. The access to the oven temperature sensor plug and the wires is from the back only. You have to pull the oven out of the wall (if it’s free standing) or remove it from the cabinet (if it’s built in). Disconnect the power and remove the rear cover. Check the resistance across the oven temperature sensor. It is supposed to be about 1100 Ohms at room temperature. If the resistance is incorrect, the oven temperature sensor is bad and needs to be replaced. If not, check all the wires from the oven temperature sensor to the ERC. If it is not the sensor and wires, you have to replace the ERC.”

Upper oven sensor: GE WB21X5301 Oven Sensor Assembly - AppliancePartsPros.com

Video:
Gas Range Sensor Assembly (part #WB21X5301) - How To Replace