29 12 / 2013
In a decidedly non-techie post, I will detail how I changed out the ceramic/glass top of my Kenmore cooktop (model #790.42749400).
First things first of course, always turn off the breaker!
Next step is to remove the access cover from underneath the cooktop
After you’ve removed the access panel, you can detach the controls from the ceramic top. You’ll need to remove 4 screws.
After you’ve done that, you can start working on the top side by using a razor knife to remove any silicon/adhesive holding the cooktop in place.
Once this is done, you should be able to lift the cooktop out.
Next remove all six screws that attach the ceramic/glass part to the bottom. These will all have a plastic shroud/spacer on them.
Carefully lift up the front. You will not be able to lift it fully as the burners are attached directly to the glass and control unit. I had help holding the cooktop glass while I used a butter knife to pry the bar holding the burners in place. I started at the front and worked back.
Once they’re off, it will look like this. The next step is to put the new top on and then just do the reverse of the previous steps. I ended up removing the steel braces on the sides - 8 of them - because the new glasses flange was a bit bigger than the old one.
It took me about 45 minutes to do the swap out. I did have to add some extra bracing as the original installer didn’t have any support from the bottom and the cooktop was being held only by the ceramic/glass part. It’s probably the reason it cracked in the first place.