How to install new fan switch - Jenn-Air JED8430 Electric Cooktop

I have two of the 71001494 fan switches new.

you need a new on/off/speed switch from jen-air find it here: http://shared.whirlpoolcorp.com/sharedservices/dealerlocator/dealer_search.jsp?siteCd=JA_EN_US it is easy to replace. make sure the breaker is off before you remove the switch

I suspect that the two black wires were attached to a wall switch or a wall times, along with the ground.

Check to see if you have a hot wire there. then temporarily wire the two black wires together and see if the fan comes on, i believe it will.

take a AK47 to it

if it is an old stove i would say have it serviced/checked over. if it is a newer stove i am guessing the circuit breaker predates it and is rated for the old stove therefore you will need to have a larger circuit breaker installed (by a licenced electrician)

you can find the parts breakdown at sears.com parts
I looked up the fan switch # for you it is Part # 74009254
it is a big job to replace just remember to turn of breaker.

i think that there is a sub for that switch.
i tried finding it but cannot find the sub.sorry

electricians do a couple of years learning the trade
DIY people seldom get it right and generally hurt themselves or others by not getting it right
you say you installed the fans and all worked well but the cook top is now blowing the circuit breaker What caused the light switch to short
it is logical to say that somewhere in your wiring you have used a power or ground circuit that should not be used and that is causing overload or ground leakage problems
before you try fixing the problem , you have to know exactly what happened and to get that information you will have to get in an accredited electrician to explain what was done wrong
sorry that you will not appreciate the answer but there are too many people below ground because they did not recognize the simple fact that electricity and gas is not a diy domain

I am wondering if you just need to replace the knob then perhaps you don't need to take much apart.

Is this a knob that has an allen screw in the side that unscrews to let it come off or is it a friction fit.

If the knob is so small that you can't get it off some times wrapping a thin rag around it gives you the way to tug it off. If it is the whole switch you are fixing then I see why you need to take lots of things apart. If found the installation manual online and that might give you a clue to how it is installed in the counter to take it back out if you need to get to the insides. I am not sure what you need help with so please let me know more if this was not enough.

http://shared.whirlpoolcorp.com/product_literature/search_results.jsp?searchTerm=CVE340&siteCd=JA_EN_US

there are 4 wires for that red white black and green sure you didnt miss a wire