Hi,Welcome to Just Answer, My name isXXXXX will be helping you with your appliance issue today.
these are tempered glass and sometimes there is a small flaw in the glass that can eventually caues the glass to explode, I used to run a glass company and have seen this happen a lot, even after years of use, theres know way to telll however what caused it, do you need to have us look up the part and diagrams? if so what is the model #? thanks Bryan
Is there anything the company should do?