Question about Microwave Ovens
The humming noise is probably being caused by higher than normal current through the power transformer.
The most likely causes are a shorted high voltage rectifier, or shorted turns on the high voltage winding on the transformer. A shorted magnetron can also cause high current, but usually does no emit any odor, as the shorted elements are inside the sealed envelope of the tube. A bad wiring connection to it, however, can smell and cause it not to heat.
Posted on May 20, 2016
I would say either the high voltage transformer or magnetron has failed.
Your oven has a 12 month parts & labor warranty and a 5 year warranty covering the magnetron.
If you have an extended warranty (or a long warranty) from your RV dealer, that can help. I'd ask them or check your paperwork.
Otherwise, you can visit Daewoo online or call them at 1-800-323-9668 or 1-800-553-4355 to find parts or find your nearest authorized service center to have them do the work.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
Posted on Aug 03, 2008
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Posted on Jan 02, 2017
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