The "F3" error code means the oven sensor is open.
An ohmmeter reading for the open circuit should be "∞".
Resistance should be measured across both wires.
The following article on our forum will explain in detail how to run a continuity test using either an analog meter or a digital meter – How to check continuity with Ohmmeter.
- The part number for the oven sensor is AP2023862
Here are the break down diagrams for the GE range Model JB940AB1AA
Gene.