How to determine if it's the Burner, or the switch/control that is bad on cooktop?

Oven Repair (including Ranges and Cooktops)
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[LEFT][COLOR=#000000]The right front burner which is a dual burner, has stopped working after only 3 years (both inner and outer coil). This is a flat glass 30 in. cooktop. I have 2 questions–

  1. How do I determine if its the burner itself, the switch, or some other part? When I turn the switch on, there is an audible noise, just as there is when I turn the other burners on, AND the indicator light comes on. I am handy and have electrical test equipment and can test something if someone can point me to the possible culprit.

  2. To replace the defective part, I’m assuming I need to remove the cooktop from the countertop? It is sealed in with the silicon…under the glass lip…any suggestions on removing this without breaking the glass? Thanks for any help!!

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