GE Range issues

Hi!

I recently purchased a GE self-cleaning stove from someone on Craig's List. In the apartment it was in, it worked just fine - tested all elements and both burners. It is the first stove going into our house.

When I plugged it in none of the elements or their indicator lights worked.

Clock worked, extra plug had voltage, light in oven worked.

Turning on the oven to bake, indicator lights worked, top element heated up. Lower element did not heat up at all.

Broil turned on indicator lights and top element, but element didn't heat up to broil-type temperature.

All fuses were fine, and power was registering in all fuse sockets.

I checked the wall socket - I have 110 volts running to each side.

I don't have a multimeter - just a pen that tells me if there is power (which is a little sensitive) and a thing that has two pins that lights up and tells me if I have 110 or 220.

Taking off the back, I tested from the (is it called a bus bar?) where the plug wires go in and split to their proper places in the range. I have voltage from there up to the fuses on both sides (red and black).

I have voltage running to the elements because with the switch on even though the indicator lights don't go on, if I put my tester in the element socket, I have power.

Any ideas would be greatly appreciated!!