Hello:

I was away on vacation and when I came home my microwave had no display lit up. Since it was a built in unit I reset the breaker for it and the entire display flashed on and off and when I opened the door it went out.
I removed it from the cabinet since I was worried about a fire and now when I plug it in the display flashes for a while and eventually goes out.

Any idea what it could be and what part I could replace to fix it?

Thanks!