20 Most Recent Bosch HBN 7052 GB Stainless Steel Electric Double Oven Questions & Answers

Just get over it, it's not important. Get a hearing aid. It's most likely your ears have aged and the alarm is just as loud as before. What? It's also possible that the little noise maker has a hole to allow the sound out and has become clogged with dripping pizza, chicken fat, grease vapors, or because it's an electronic device in a hot box it may need replacing.

I need more inforamation , dose the top burners work, dose any of the oven work top or bottom , Make model, serial number if you can find it

The ovens have separate heatin elements. Sounds like your bottom oven element needs replacing