Dan O. -- Monday, 16 September 2002, at 8:42 p.m.
: What is the meaning of the F3 code?
You never posted the appliance's model so I can't even find out whom manufactured your particular for Sears (they don't make anything them self) but an F-3 error message usually indicates a problem in the oven temperature sensor or its wiring circuit.
Hear are some examples from the various manufacturers:
F3 - Open sensor circuit
F3 - Open sensor, sensor resistance exceeds 2900 ohms during bake, broil or clean
F3 - Oven Sensor Open
F3-E0 - Oven sensor open
F3-E1 - Sensor shorted
F3-E2 - Oven too hot, replace sensor
F3-E3 - Clean temp. too hot, replace sensor
F3-E4 - Open or shorted sensor
E0-F3 - Oven sensor open
E1-F3 - Sensor shorted
E2-F3 - Oven too hot, replace sensor
E3-F3 - Clean temp. too hot, replace sensor
E4-F3 - Open or shorted sensor
: is it something I can fix or will I need to call a repairman?
I don't know how handy you are but oven sensors are not usually that difficult to replace. I would think most reasonably handy homeowners could usually complete such a job them self.
You can see a popular oven sensor at the page linked below.