オリジナル投稿者： David Spalding ,
After running it at 20% and 50% for a minute or two, I heard the louder humming cycling on and off, so clearly something in the control was trying to cycle the magnatron...? Perhaps the HV cap had gone bad, or something in the control I smelled a very faint electronics burning from the area of the control, so that's what I suspect. This may be corroborated by the fact I heard a pop from the front right of the oven. At any rate, some July 4th sales of new units gave me the opportunity to get a CR top-rated unit (convection/microwave oven, much quieter) for as much as 20% or 30% off the original price, and finance for free for 12 - 18 months. As others have pointed out, sometimes it's just best to replace a defective unit with one boasting far more features and flexibility.