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My microwave makes a humming sound during defrost, why?

  • Others
  • Others
  • Troubleshooting
  • Microwave Ovens
  • Last Updated 20/08/2014

Question          

     My microwave makes a humming sound during defrost, why?

           

Detailed Answer

 

      During defrost, the unit will circulate air throughout the cavity using an internal fan. The Magnetron will turn on

      and run for a little time, then shut off while the fan continues to circulate the air around the food.

      This will allow for proper defrosting without overcooking food.

 

                                 

 

 

 

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