Oven elements would not heat

Initially, I tested the temperature sensor and it was OK. I pulled out the range and shut off the circuit breaker to it. I removed the upper back sheet metal panel to expose the clock timer. I removed the 4 screws to it, unplugged the wires to it and plugged them into the new clock timer. I carefully removed the plastic facing stuck to the face of the old clock timer and stuck it on the new clock timer. No new adhesive was necessary. I placed the newly connected clock timer in position and secured it with the 4 screws that secured the old clock timer. I pushed the range back into position and reset the circuit breaker. I turned the oven on and the problem was resolved.