The noise our microwave makes has recently changed significantly. There was no power outage that we are aware of. I'll try to describe it...
Before, when we started the microwave, there would be a low pitched "hum" for 1-2 seconds and then a higher pitched "buzz" would be constant until the time expired or the door was opened. It might have been a fan type of sound...but I'm not sure.
Now, there is nothing but the low pitched "hum." It still heats food like it always has. The Vent fan still works when we turn it on high/low/off. It doesn't seem like anything is broken...it just isn't "buzzing" anymore.
Can you help?
Possibly, the "fault" was the buzzing in the first place! Buzzing is usually a cabinet vibration caused by magnetic fields from the "gubbins". If the buzzing should occur again, try pushing/ pulling/ poking the cabinet while the oven is running, you may find a position that causes the buzz to stop.
Another possibility is you previously had something else placed in close proximity to the oven.
If a rattling cabinet is the problem, either try to reposition something, or just ignore it!
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