crackling noise microwave/oven?

I have a Bosch microwave/oven the light comes on but there is no heat and it makes a loud crackling noise...the same thing happens even if I try to use the oven without switching on to microwave..
ann, November 2014


done
I have the same. It's only two years old!!

Margaret, June 2016
link Click here to see other fixes for Bosch.