Question about Sharp R-1490 Microwave Oven

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Noisy microwave not cooking

Have a sharp 1490 over the range microwave that is noisy and doesnt cook. appears to operate but doesnt cook?

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  • ajaypurohit Apr 13, 2009

    Microwave making more noise and not heating. The problem began when I strted the microwave and I heard a bursting noise. I opend and closed the door and retried. Again a busrting noise.



    The turn table and lamp are working fine.



    Please advise.



    Thanks

  • Anonymous Mar 22, 2014

    how do I remove an over the range Sharp R-1490?

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  • Sharp Master
  • 8,820 Answers

Is it making a louder than usual; buzz or hum when you try to cook?

If so, I would suspect a shorted high voltage diode ore a bad magnetron.


-.htmHere are some links you or someone you know can use for test help, but read
their safety warnings first:






line-height:normal">mso-fareast-font-family:"Times New Roman"">http://www.microtechfactoryservice.com/diode.html



line-height:normal">mso-fareast-font-family:"Times New Roman""> http://www.microtechfactoryservice.com/mag_test.html



line-height:normal">mso-fareast-font-family:"Times New Roman""> http://www.microtechfactoryservice.com/xformer.html





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We have the service manual and I have uploaded it to our site for you here.


-.htmPlease reply back here if you still need help.

We\'re happy to help and we appreciate your thoughtful
rating of our answer.

Posted on Jul 12, 2008

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