Microwave is locked with a high pitched buzzer sound
I wanted to auto defrost bread and when I touched the start button the microwave would not turn in, has a high pitched buzzer sound and the letters TART are on the screen with the bread weight…
A growling or high-pitched sound coming from your appliance when its cooking is a good indication the magnetron tube is failing. The magnetron in your microwave is responsible for creating the frequency that cooks your food. In good condition, this device operates silently. This is not a DYI repair.