Hi, I rent a Paris furnished studio which has a microwave, supplied by the owner. Brand: Orva.It has been working fine for months. This morning, although everything appeared to be working normally (interior light goes on, plate turns, microwave hums), it does not heat anything. I have checked all the settings. Heat power is at the maximum, no preset that I can see. I pressed the same incremental "30 second" button as I had in the past. Unplugged and replugged microwave. Pressed the start button, leaving a cup of milk "cooking" inside for 10 minutes. Came out just as cold as it went in. (Nothing was done to microwave since yesterday, nor was it dropped, etc). Has anyone ever had a problem like this? Any clues? Can a microwave simply die and still make all the noises etc as when it's working fine?By French rental laws, am I responsible now to replace the microwave? Thanks for any info.