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Viking Micro noise

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.

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Re: Viking Micro noise

The noise is probably from the high-voltage transformer. When it is overloaded, the excess magnetic field it produces vibrates its wire coils. Odd that it only happens for a brief time. It is either defective itself (in which case it may go a long time) or it is getting overloaded by the magnatron/capacitor/diode on its output (in which case it will get worse shortly)
Hope Ya Fix it

Posted on Jan 08, 2008

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