PROBLEM: only during the microwave function, the unit makes loud "buzzing" noise 1 to 2 seconds after start up. All other functions work fine...other than buzzing. No sparks or other abnormalities.
The unit heats items in a normal time range, ie, nearly boils a cup of water in 1 minute.
There is NO abnormal noise while convection bake or broil is used.
As stated, other than the "buzzing or rattling" noise, the unit seemily works fine.
The unit is "new" (no warranty, bought as is) so there is no recourse with manufacturer.
Any insights welcome.
Thank you.
Dave
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