I have this Jenn-Air that makes a ridiculous buzzing noise that starts 1-2 sec upon firing up and stops 1-2 before shutting down. I have found that in defrost mode it buzzes intermittently throughout the process. The unit heats fine and works fine otherwise. I would assume it is the magnetron, except the fact that it heats fine. Thoughts? Anyone have a repair/replacement manual.
Thanks!