Congrats on your troubleshooting efforts. The element you speak of is called a "dual element". Unfortunately, you can only purchase it as an entire assembly. This is a fairly simple repair that you should be able to perform yourself. Just follow these steps:
First, please review your Warranty Information. Most warranties DO NOT cover cosmetics. That is, if your cooktop paint starts to wear off, most manufacturers will not replace it. Warranties also DO NOT cover accidents such as dropping something on the top and breaking it. Warranties DO cover blistering, warping and heat related breakage (if you are using the recommended cookware
). This is why it is important to follow all the manufacturer's use and care instructions that come with your range. I know this does not include ALL manufacturers, but this is true with most.
I would recommend you have someone assist as this should be a two-person repair job. Please read through the instructions carefully before starting the repairs, and follow any safety recommendations.1. UNPLUG the range before servicing. There are dangerous voltages still present even with elements turned off.
2. There are a few screws located under the front edge of the cook top. You will need to open the oven door to see them. Remove these screws and the top should lift up. If the range is not equipped with any kind of hinge supports, the top will have to be propped up.
3. On some ranges, there is a disconnect plug for the surface element wiring harness. If you have this feature, you can unplug the entire top panel and move it to flat surface to work on it.If not, you will have to prop the top panel up.
NOTE: If moving the cooktop to another work surface, place the whole cook top assembly face-down on a soft surface (like some old towels, or a blanket).
4. Remove the defective surface element by disconnecting the terminal plug wires. Make sure you label them.
5. Next, locate the two tabs that hold the element in place. Take note of the numbers that the tabs are inserted into. These are alignment marks and you will need to install the new element in the same manner. Take a pair of pliers and slightly bend these tabs by turning them so you can remove the element. NOTE: You may have to remove the bracket guard that holds the element in place. If so, leave the bracket face down when you remove the screws. This leaves the existing good element from being moved around and reduces the risk of damaging it. Lift the bracket up slightly,and slide the defective element out.
6. Remove the old element and discard. Install the new element making sure you handle with care. They are very fragile. Care also must be taken not to handle the element coils or ceramic material. Try to handle from the underside of the element only. Oil from your hands can cause damage to the element and/or premature failure.
NOTE: Ensure you use the same alignment marks.
7. With the element installed, lock the tabs in place and install the wire connectors. Reinstall the screws on the bracket guard.
8. Lower the cook top back into place and secure with screws.
If you have questions along the way, please let me know. I hope this helps you.
PS You may experience a bit of smoking when you turn on the new element for the first time. This is normal.