Mike for Model Number JKP18BA2BB We were having problems with the keypad (2 and 9 didn't work) and getting an F3 code. Also the temp of the oven wasn't getting as high as we set it for, so we had to trick it by setting it at 400 to get 350. I replaced the keypad. That solved the 2 and 9 issue, but we still got the F3. Then I replaced the oven sensor (the metal probe that sticks into the oven thru the backwall and plugs in to the wiring) The oven seemed to work fine for a week, but now we're getting F3 again. Argh! What next oh wise ones?
Answer Mike, The F3 is an open or shorted sensor circuit which could be the result of contamination on the terminals, pinched wires in the sensor circuit or cold solder joint on the control. You will want to do a resistance check of the oven sensor which should be 1100 ohms at room temp of 72 degrees. Also check the continuity of the wire harness from the control board to the oven sensor and make sure that there is continuity there and visually inspect the wires for damage. If all this checks ok then replace the control board. Read More... Answered by AppliancePartsPros.com | Friday, February 28, 2014