Panasonic Microwave 14 Risposte Punteggio 7 Loud noise when turntable is in use. GE Microwave Oven 8 Risposte Punteggio 7 Making loud Hum when not on, but plugged in. Microwave Oven 4 Risposte Punteggio 2 Microwave makes loud electric sound when I turn it on, still works Mi...