How can I clean the black cooktop grids?

Take the burner off and boil it in a pan of boiling water and soap. Leave to cool, rinse and dry. That should fix it. grease is insulating the grounding for the spark. I have come across it many times.

Having said that, how new? Still under warranty? Call them out!

You can try to clean the two pins with degreaser and then soap and water using a skrubby sponge for delicate surfaces However, my Bosch cooktop has had problems with the igniters (particularly on two burners) which required the replacement of the control unit. This requires opening the unit completely and replacing the white plastic box and connections to each burner. It is easy enough to do, but it is a bit scary to lift off the glass as there is probably an adhesive which one has to lift the top off of. Another thing you can try is to adjust the two screws that are uderneath the removable cover of the burner. Sometimes just tightening or loosening them a bit can solve the problem

Hello- You can put the filter in the dishwasher. The trough can be difficult to clean, I would use something that's not too sudsy, like Citra Solv or any degreaser. Just use a sponge or rag. If there is a lot of build-up you can scrape-up the grease with a plastic putty knife. Once it is clean just turn the vent on to dry it so any water left over will not cause the pan to rust. Hope this helps, best regards.

Try soaking in hot soapy water that you've dropped several denture cleaning tablets in. That's helped me get some tough stuff off, or at least loosened up enough that some elbow grease and a scrubbie can finish off the job.

Put them in the oven and run the self clean cycle

Oven cleaner. That stuff is second only to industrial grade hydrogen peroxide

Batender's Friend. That stuff is amazing!

Good Luck

Remove the round burner plates and clean thoroughly in soap and water. Clean the burner ring where the burner plates rest with soap and water.

Let me know what you find.

DeBruce Polish should remove those types of problems and also render the surface more "Cleanable". This stuff really works on glass anomalies.

Check out debrucepolish.com.

DEBRUCE METHOD on You Tube

When they are really bad, I use a razor blade in one of those scraper holders. Finally a green scrubby with some comet....Once finished polish it with a very good cooktop cleaner and you will be looking good as new.... If I can help further, I am here.

Waiting to hear from you,
Eric Campion

Hi, I assume we are talking about a flat glass top. First the bad news. using any abrasives will permanently scratch the glass hence the dull spot. You can however make it look a little better. Grease spots and the like can be removed with a flat razor blade scraper which needs to be held flat to avoid the corners making scratches. Use any good glass/ceramic cooktop cleaner ( which is the ONLY cleaner you should ever use ) (available in your local grocery diy store and some hardware stores). The cleaner is a thick liquid, put about a dime size drop on each burner area and use a paper towel to buff out the finish like waxing a car. Once it looks clean flip your paper towel over and shine the top to like new. Good Luck!

you must have gotten water down the igniter switches.try drying out underneath the knobs. or leave unplugged till they dry.

I used Mr. Clean multi-surface and the green, back side of the sponge. Turned on a light to show visible stains better, and scrubbed away. It didn't scratch the glass and got it out quick. Hope this helps.