Hi,

3 things control the oven temp.

Oven temp sensor, it should ohm at approx 1000-1100 ohms at room temp. Hot surface ignitor in the oven, if weak it can quit part way through cooking, the hot surface ignitor should draw approx 3.2-3.6 amps.
The clock/control itself if all others check ok.

Do make sure the simple things like the oven door is closing ok, rack(s) are not in backwards holding the door open, no one has covered the racks with tin foil.


Oven temp sensor


Oven igniter assembly


Clock assy


Needed with the clock, Overlay, clock, white