This problem can often be caused by blown or faulty fuses, bad bake elements, faulty temperature sensors, safety valves, oven burner igniters and malfunctioning temperature control boards.
Few ovens have completely accurate temperature settings, so verify your oven’s temperature with a separate oven thermometer. To re-calibrate oven temperature, call in a repair expert.
Cakes, pies and cookies should go into an oven that is already at cooking temperature. Follow recipe instructions carefully, and if the recipe calls for preheating, do it. Be sure to allow enough time for the oven to reach the preheated temperature.
Excessive water on cleaning rags can short out the electrical components behind oven knobs. For that reason, many repair experts do not recommend that you clean behind oven knobs.
Always unplug the oven before cleaning its interior so you don't put yourself at risk of electrocution. Also, follow your owner’s manual instructions before cleaning your oven interior.
Running the self-cleaning cycle can produce unpleasant and potentially toxic odors. Always vent your home while self-cleaning is underway.