Oven does not maintain set temperature.

SOURCE: When oven is baking, control resets

theres a loose conection on the oven control more than likely its internal and youll need to replace the control but check you wirs to the control first just incase the bad conection is there. if its not, replace the oven control

SOURCE: oven not maintaining temperature

Yes

SOURCE: Oven door will not release after cleaning

Try waiting until the oven is COOL, then switch the power off to it , wait 20 seconds and switch the power back on?

SOURCE: Oven not heating to correct temperature

Replace the oven glowbar ignitor. It is too weak to keep the gas valve open.

SOURCE: head a popping sound and oven temperature doesn't work

Most likely a bad element. Turn off the power to the oven. Remove the racks. Use a phillips screwdriver or 1/4 inch nut driver to remove the mounting screws at the back of the oven cavity to remove the element. Carefully pull the element out and remove the wires. Do not let the wires fall back into the holes. Use a volt meter set for continuity. Touch one meter lead to one terminal on the element. Touch the other meter lead to the other terminal. If you get NO reading the element is bad. A new element will correct your problem. If the element reads as good you have a wiring problem or a bad control.

Testimonial: "Although I have not yet tried what you recommended (my boyfriend will), the answer was quick and comprehensive. Thanks"